Redigerer Pluto (avsnitt)

== Referanser==
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<ref name="Buie_2010 surface-maps">[[#Buie2010|Buie (2010)]], s. {{Formatnum:1128–1143}}</ref>
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<ref name="Sicardy2006">[[#Sicardy2006|Sicardy (2006)]], s. 542</ref>
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<ref name="wisdom91">[[#Wisdom1991|Wisdom (1991)]], s. {{Formatnum: 1528–1538}}</ref>
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<ref name="YoungBinzelCrane2000">[[#Young2000|Young (2000)]], s. {{Formatnum:1083}}</ref>
</references>

=== Nettsteder ===
<references>
<ref name="AstDyS-Pluto">{{Kilde www
 |tittel=AstDys (134340) Pluto Ephemerides
 |utgiver=Department of Mathematics, University of Pisa, Italy
 |url=http://hamilton.dm.unipi.it/astdys/index.php?pc=1.1.3.1&n=134340&oc=500&y0=2012&m0=8&d0=5&h0=10&mi0=33&y1=2012&m1=9&d1=4&h1=11&mi1=33&ti=1.0&tiu=days
 |besøksdato=2012-08-05|språk=en
}}</ref>

<ref name="Bathrobe">{{Kilde www
 |forfatter   = 'Bathrobe'
 |tittel      = Uranus, Neptune, and Pluto in Chinese, Japanese, and Vietnamese
 |verk        = cjvlang.com
 |url         = http://www.cjvlang.com/Dow/UrNepPl.html
 |arkiv_url   = https://www.webcitation.org/615UJQCyH?url=http://www.cjvlang.com/Dow/UrNepPl.html
 |arkivdato   = 2011-08-20
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 |språk      = en
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}}</ref>

<ref name="BBC-Akwagyiram 2005-08-02">{{Kilde www
 |url=http://news.bbc.co.uk/1/hi/magazine/4737647.stm 
 |tittel=Farewell Pluto? 
 |forfatter=Akwagyiram, A. 
 |utgiver=BBC News 
 |utgivelsesdato=2005-08-02 
 |arkiv_url=https://web.archive.org/web/20090215111840/http://news.bbc.co.uk/1/hi/magazine/4737647.stm 
 |arkivdato=2009-02-15 
 |besøksdato=2012-08-05 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Boyle1999-MSNBC">{{Kilde www
 |url            = http://www.msnbc.msn.com/id/3077880/
 |utgiver        = [[MSNBC]]
 |tittel         = Pluto regains its place on the fringe
 |forfatter      = Boyle, Alan
 |utgivelsesdato = 1999-02-11
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 |arkivdato      = 2011-08-20
 |besøksdato    = 2012-08-05
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="Britt2003">{{Kilde www
 |tittel=Pluto Mission a Go! Initial Funding Secured 
 |forfatter=Britt, Robert Roy 
 |verk=space.com 
 |url=http://www.space.com/scienceastronomy/pluto_horizons_030225.html 
 |arkiv_url=https://web.archive.org/web/20080724041728/http://www.space.com/scienceastronomy/pluto_horizons_030225.html 
 |arkivdato=2008-07-24 
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 |språk=en 
 |dato=2003 
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}}</ref>

<ref name="Britt-2006">{{Kilde www
 |forfatter      = Britt, Robert Roy
 |url            = http://www.space.com/scienceastronomy/061121_exoplanet_definition.html
 |tittel         = Why Planets Will Never Be Defined
 |verk           = Space.com
 |utgivelsesdato = 2006-11-21
 |arkiv_url      = https://www.webcitation.org/615UncqLX?url=http://www.space.com/scienceastronomy/061121_exoplanet_definition.html
 |arkivdato      = 2011-08-20
 |besøksdato    = 2012-08-09
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="britty">{{Kilde www
 |tittel=Puzzling Seasons and Signs of Wind Found on Pluto 
 |forfatter=Britt, R.R. 
 |verk=Space.com 
 |url=http://www.space.com/scienceastronomy/pluto_seasons_030709.html 
 |arkiv_url=https://web.archive.org/web/20080516050505/http://www.space.com/scienceastronomy/pluto_seasons_030709.html 
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}}</ref>

<ref name="Buie2006 IAU response">{{Kilde www
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 |utgivelsesdato=september 2006 
 |tittel=My response to 2006 IAU Resolutions 5a and 6a 
 |utgiver=Southwest Research Institute 
 |url=http://www.boulder.swri.edu/~buie/pluto/iauresponse.html 
 |arkiv_url=https://web.archive.org/web/20070603104622/http://www.lowell.edu/users/buie/pluto/iauresponse.html 
 |arkivdato=2007-06-03 
 |besøksdato=2012-08-09 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Buie_mapmaking">{{Kilde www
 |url=http://www.boulder.swri.edu/~buie/pluto/mapstory.html 
 |tittel=How the Pluto maps were made 
 |forfatter=Buie, Marc W. 
 |arkiv_url=https://web.archive.org/web/20100209202908/http://www.boulder.swri.edu/~buie/pluto/mapstory.html 
 |arkivdato=2010-02-09 
 |besøksdato=2012-08-09 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Buie_web_map">{{Kilde www
 |url=http://www.boulder.swri.edu/~buie/pluto/hrcmap.html 
 |tittel=Pluto map information 
 |forfatter=Buie, Marc W. 
 |arkiv_url=https://web.archive.org/web/20110629005310/http://www.boulder.swri.edu/~buie/pluto/hrcmap.html 
 |arkivdato=2011-06-29 
 |besøksdato=2012-08-06 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="ClarkHobart2000">{{Kilde www
 |forfatter   = Clark, David L.; Hobart, David E.
 |tittel      = Reflections on the Legacy of a Legend
 |url         = http://www.fas.org/sgp/othergov/doe/lanl/pubs/00818011.pdf
 |arkiv_url   = https://www.webcitation.org/615UfJMgn?url=http://www.fas.org/sgp/othergov/doe/lanl/pubs/00818011.pdf
 |arkivdato   = 2011-08-20
 |besøksdato = 2012-08-08
 |språk      = en
 |dato        = 2000
 |url-status = død
}}</ref>

<ref name="Claxton1951">{{Kilde www
 |url=http://fredpratt.tripod.com/PR/pluto.html 
 |tittel=The Planet 'Pluto' 
 |forfatter=Claxton, K.M. 
 |utgiver=Parents' Union School Diamond Jubilee Magazine, 1891–1951 (Ambleside: PUS, 1951), p. 30–32 
 |arkiv_url=https://web.archive.org/web/20110717102713/http://fredpratt.tripod.com/PR/pluto.html 
 |arkivdato=2011-07-17 
 |besøksdato=2012-08-08 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Croswell1992">{{Kilde www
 |tittel=Nitrogen in Pluto's Atmosphere 
 |forfatter=Croswell, Ken 
 |url=http://www.kencroswell.com/NitrogenInPlutosAtmosphere.html 
 |arkiv_url=https://web.archive.org/web/20110723080429/http://www.kencroswell.com/NitrogenInPlutosAtmosphere.html 
 |arkivdato=2011-07-23 
 |besøksdato=2012-08-06 
 |språk=en 
 |dato=1992 
 |url-status=død 
}}</ref>

<ref name="Davies2001">{{Kilde www
 |tittel=Beyond Pluto (extract) 
 |forfatter=Davies, J. 
 |verk=Royal Observatory, Edinburgh 
 |url=http://assets.cambridge.org/052180/0196/excerpt/0521800196_excerpt.pdf 
 |format=[[Portable Document Format|PDF]] 
 |arkiv_url=https://web.archive.org/web/20110715233608/http://assets.cambridge.org/052180/0196/excerpt/0521800196_excerpt.pdf 
 |arkivdato=2011-07-15 
 |besøksdato=2012-08-06 
 |språk=en 
 |dato=2001 
 |url-status=død 
}}</ref>

<ref name="DeVore2006">{{Kilde www
 |forfatter      = DeVore, Edna
 |utgivelsesdato = 2006-09-07
 |tittel         = Planetary Politics: Protecting Pluto
 |verk           = Space.com
 |url            = http://www.space.com/2855-planetary-politics-protecting-pluto.html
 |arkiv_url      = https://www.webcitation.org/615UqIZxG?url=http://www.space.com/2855-planetary-politics-protecting-pluto.html
 |arkivdato      = 2011-08-20
 |besøksdato    = 2012-08-09
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="Eris' masse">{{Kilde www
 |url=http://www.mikebrownsplanets.com/2010/11/how-big-is-pluto-anyway.html 
 |tittel=How big is Pluto, anyway? 
 |verk=Mike Brown's Planets 
 |arkiv_url=https://web.archive.org/web/20110721064541/http://www.mikebrownsplanets.com/2010/11/how-big-is-pluto-anyway.html 
 |arkivdato=2011-07-21 
 |besøksdato=2012-08-05 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="geoff2006a">{{Kilde www
 |url            = http://msnbc.msn.com/id/14489259/
 |tittel         = Scientists decide Pluto’s no longer a planet
 |forfatter      = Britt, Robert Roy
 |utgivelsesdato = 2006-08-24
 |utgiver        = [[MSNBC]]
 |arkiv_url      = https://www.webcitation.org/615Uo2HHk?url=http://msnbc.msn.com/id/14489259/
 |arkivdato      = 2011-08-20
 |besøksdato    = 2012-08-09
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="geoff2006c">{{Kilde www
 |url            = http://space.com/scienceastronomy/060824_planet_definition.html
 |tittel         = Pluto Demoted: No Longer a Planet in Highly Controversial Definition
 |forfatter      = Robert Roy Britt
 |verk           = Space.com
 |utgivelsesdato = 2006-08-24
 |arkiv_url      = https://www.webcitation.org/615UmlUZa?url=http://space.com/scienceastronomy/060824_planet_definition.html
 |arkivdato      = 2011-08-20
 |besøksdato    = 2012-08-09
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="Gorwyn2010">{{Kilde www
 |forfatter=Gorwyn, Adam 
 |url=http://earthsky.org/space/alan-stern-%E2%80%98a-chihuahua-is-still-a-dog-and-pluto-is-still-a-planet-2 
 |tittel=Alan Stern: ‘A Chihuahua is still a dog, and Pluto is still a planet’ 
 |verk=EarthSky interview 
 |utgivelsesdato=2010-02-18 
 |arkiv_url=https://web.archive.org/web/20101129185729/http://earthsky.org/space/alan-stern-%E2%80%98a-chihuahua-is-still-a-dog-and-pluto-is-still-a-planet-2 
 |arkivdato=2010-11-29 
 |besøksdato=2012-08-05 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Gray 2008-08-10">{{Kilde www
 |url=http://www.telegraph.co.uk/science/science-news/3349184/Pluto-should-get-back-planet-status-say-astronomers.html 
 |tittel=Pluto should get back planet status, say astronomers 
 |forfatter=Gray, Richard 
 |utgiver=The Telegraph 
 |utgivelsesdato=2008-08-10 
 |arkiv_url=https://web.archive.org/web/20100920100645/http://www.telegraph.co.uk/science/science-news/3349184/Pluto-should-get-back-planet-status-say-astronomers.html 
 |arkivdato=2010-09-20 
 |besøksdato=2012-08-05 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Gutierrez2007">{{Kilde www
 |forfatter=Gutierrez, Joni Marie 
 |utgivelsesår=2007 
 |tittel=A joint memorial. Declaring Pluto a planet and declaring March 13, 2007, 'Pluto planet day' at the legislature 
 |utgiver=Legislature of New Mexico 
 |url=http://legis.state.nm.us/Sessions/07%20Regular/memorials/house/HJM054.html 
 |arkiv_url=https://web.archive.org/web/20100304005735/http://legis.state.nm.us/Sessions/07%20Regular/memorials/house/HJM054.html 
 |arkivdato=2010-03-04 
 |besøksdato=2012-08-09 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="Gugliotta2005">{{Kilde www
 |forfatter=Gugliotta, Guy
 |url=http://www.washingtonpost.com/wp-dyn/content/article/2005/10/31/AR2005103101426.html
 |tittel=Possible New Moons for Pluto
 |verk=[[The Washington Post]]
 |utgivelsesdato=2005-11-01
 |besøksdato=2012-08-05|språk=en
}}</ref>

<ref name="Hahn2005">{{Kilde www
 |tittel=Neptune's Migration into a Stirred–Up Kuiper Belt: A Detailed Comparison of Simulations to Observations 
 |utgiver=Saint Mary’s University 
 |forfatter=Hahn, Joseph M. 
 |format=[[Portable Document Format|PDF]] 
 |url=http://gemelli.colorado.edu/~hahnjm/pubs/migrate.pdf 
 |arkiv_url=https://web.archive.org/web/20110723170440/http://gemelli.colorado.edu/~hahnjm/pubs/migrate.pdf 
 |arkivdato=2011-07-23 
 |besøksdato=2012-08-07 
 |språk=en 
 |dato=2005 
 |url-status=død 
}}</ref>

<ref name="Heinrichs2006">{{Kilde www
 |tittel=Dwarfed by comparison 
 |forfatter=Heinrichs, Allison M. 
 |verk=Pittsburgh Tribune-Review 
 |url=http://www.pittsburghlive.com/x/pittsburghtrib/news/cityregion/s_467650.html 
 |arkiv_url=https://web.archive.org/web/20071114081539/http://www.pittsburghlive.com/x/pittsburghtrib/news/cityregion/s_467650.html 
 |arkivdato=2007-11-14 
 |besøksdato=2012-08-08 
 |språk=en 
 |dato=2006 
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}}</ref>

<ref name="Hubble2010">{{Kilde www
 |url=http://hubblesite.org/newscenter/archive/releases/2010/06/full/ 
 |tittel=New Hubble Maps of Pluto Show Surface Changes 
 |utgivelsesdato=2010-02-04 
 |utgiver=News Release Number: STScI-2010-06 
 |arkiv_url=https://web.archive.org/web/20100209084358/http://hubblesite.org/newscenter/archive/releases/2010/06/full/ 
 |arkivdato=2010-02-09 
 |besøksdato=2012-08-08 
 |språk=en 
 |url-status=død 
}}</ref>

<ref name="hubblesite2007/24">{{Kilde www
 |tittel=Astronomers Measure Mass of Largest Dwarf Planet 
 |verk=hubblesite 
 |url=http://hubblesite.org/newscenter/archive/releases/2007/24/full/ 
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 |arkivdato=2011-06-10 
 |besøksdato=2012-08-05 
 |språk=en 
 |dato=2007 
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}}</ref>

<ref name="IAU0603">{{Kilde www
 |utgivelsesdato = 2006-08-24
 |utgiver        = International Astronomical Union (News Release—IAU0603)
 |tittel         = IAU 2006 General Assembly: Result of the IAU Resolution votes
 |url            = http://www.iau.org/public_press/news/detail/iau0603/
 |arkiv_url      = https://www.webcitation.org/5msMTolDi?url=http://www.iau.org/public_press/news/detail/iau0603/
 |arkivdato      = 2010-01-18
 |besøksdato    = 2012-08-09
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="IAU0804">{{Kilde www
 |utgivelsesdato = 2008-06-11
 |utgivelsessted = Paris
 |tittel         = Plutoid chosen as name for Solar System objects like Pluto
 |utgiver        = [[Den internasjonale astronomiske union]] (News Release—IAU0804)
 |url            = http://www.iau.org/public_press/news/release/iau0804
 |arkiv_url      = https://www.webcitation.org/617GRtcs4?url=http://www.iau.org/public_press/news/release/iau0804
 |arkivdato      = 2011-08-22
 |besøksdato    = 2012-08-09
 |språk         = en
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}}</ref>

<ref name="IAU2006 GA26-5-6">{{Kilde www
 |url            = http://www.iau.org/static/resolutions/Resolution_GA26-5-6.pdf
 |tittel         = IAU 2006 General Assembly: Resolutions 5 and 6
 |utgivelsesdato = 2006-08-24
 |format         = [[Portable Document Format|PDF]]
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<ref name="IAU Pluto">{{Kilde www
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<ref name="ILGA SR0046">{{Kilde www
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<ref name="Jewitt2004">{{Kilde www
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<ref name="Johnston2006">{{Kilde www
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<ref name="JPL/NASA Pluto's Symbol">{{Kilde www
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<ref name="jpl-ssd-horizons">{{Kilde www
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<ref name="JPL Voyager FAQ">{{Kilde www
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<ref name="KerThan2006-CNN">{{Kilde www
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<ref name="Lakdawalla">{{Kilde www
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<ref name="Mager">{{Kilde www
 |tittel      = The Search Continues
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<ref name="malhotra-9planets">{{Kilde www
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<ref name="MIT2002-Pluto global warming">{{Kilde www
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<ref name="NASA-JPL press release 07-29-2005">{{Kilde www
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<ref name="Nasa-Hubble-Pluto moon">{{Kilde www
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<ref name="newhorizons">{{Kilde www
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<ref name="oregon">{{Kilde www
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<ref name="Perihelium_Charon">{{Kilde www
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<ref name="PlanetaryOrg Triton">{{Kilde www
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<ref name="msnbc">{{cite news
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<ref name="Pluto Fact Sheet">{{Kilde www
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<ref name="pluto.jhuapl cousin">{{Kilde www
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<ref name="pluto.jhuapl First Pluto Sighting">{{Kilde www
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<ref name="pluto.jhuapl Inside Story">{{Kilde www
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<ref name="pluto.jhuapl plutoOrbit">{{Kilde www
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<ref name="pluto guide">{{Kilde www
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<ref name="Plutosize">{{Kilde www
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<ref name="powell">{{Kilde www
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<ref name="PSIedu press release 2008-09-19">{{Kilde www
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<ref name="Sapa-AP">{{Kilde www
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<ref name="Solstation">{{Kilde www
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<ref name="spaceflightnow2007 Ice machine">{{Kilde www
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<ref name="Spahr 2006-09-07">{{Kilde www
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<ref name="Shiga 2006-09-07">{{Kilde www
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<ref name="Showalter">{{Kilde www
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<ref name="Sobel1993">{{Kilde www
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<ref name="sp-345">{{Kilde www
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 |tittel      = SP-345 Evolution of the Solar System
 |arkiv_url   = https://www.webcitation.org/615UVWuLl?url=http://history.nasa.gov/SP-345/ch8.htm
 |arkivdato   = 2011-08-20
 |besøksdato = 2012-08-09
 |språk      = en
 |dato        = 1976
 |url-status = død
}}</ref>

<ref name="SSC2002">{{Kilde www
 |url=http://www.science.edu.sg/ssc/detailed.jsp?artid=1950&type=6&root=6&parent=6&cat=66 
 |tittel=This month Pluto's apparent magnitude is m=14.1. Could we see it with an 11" reflector of focal length 3400 mm? 
 |utgiver=Singapore Science Centre 
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<ref name="Stern2006">{{Kilde www
 |forfatter      = [[Alan Stern|Stern, Alan]]
 |utgivelsesdato = 2006-11-01
 |url            = http://pluto.jhuapl.edu/overview/piPerspectives/piPerspective_11_1_2006.php
 |tittel         = Making Old Horizons New
 |utgiver        = Johns Hopkins University Applied Physics Laboratory
 |verk           = The PI's Perspective
 |arkiv_url      = https://www.webcitation.org/615UTf8kE?url=http://pluto.jhuapl.edu/overview/piPerspectives/piPerspective_11_1_2006.php
 |arkivdato      = 2011-08-20
 |besøksdato    = 2012-08-08
 |språk         = en
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<ref name="Stern2006 Tombaugh 100th">{{Kilde www
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 |etternavn=[[Alan Stern|Stern, Alan]] 
 |verk=Southwest Research Institute 
 |url=http://www.jhuapl.edu/newscenter/pressreleases/2006/060203.asp 
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<ref name="Tenn1994">{{Kilde www
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 |tittel         = History I: The Lowell Observatory in 20th century Astronomy
 |utgiver        = The Astronomical Society of the Pacific
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}}</ref>

<ref name="The Great Planet Debate">{{Kilde www
 |tittel=The Great Planet Debate: Science as Process. A Scientific Conference and Educator Workshop
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<ref name="three-up-mess1">{{Kilde www
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 |tittel=Interior Structure of Planetary Bodies 
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<ref name="three-up-mess2">{{Kilde www
 |url=http://solarsystem.dlr.de/TP/images/gross/radius_density.jpg 
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 |arkiv_url=https://web.archive.org/web/20110726012909/http://solarsystem.dlr.de/TP/images/gross/radius_density.jpg 
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<ref name="three-up-mess3">{{Kilde www
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 |tittel=The natural satellites of the giant outer planets... 
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 |arkiv_url=https://web.archive.org/web/20110511145526/http://www.dlr.de/pf/en/desktopdefault.aspx/tabid-4772/7910_read-14650/ 
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<ref name="Tyson1999">{{Kilde www
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 |tittel=Pluto Is Not a Planet 
 |verk=The Planetary Society 
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<ref name="Tyson2001">{{Kilde www
 |forfatter=[[Neil deGrasse Tyson|Tyson, Neil deGrasse]] 
 |tittel=Astronomer Responds to Pluto-Not-a-Planet Claim 
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}}</ref>

<ref name="USNO">{{Kilde www
 |tittel      = NOFS Contributes to SOFIA’S Successful Observation of Challenging Pluto Occultation
 |utgiver     = US Naval Observatory
 |url         = http://www.usno.navy.mil/USNO/tours-events/NOFS_SOFIA_Release_110711.pdf
 |arkiv_url   = https://www.webcitation.org/66ch0xBz4?url=http://www.usno.navy.mil/USNO/tours-events/NOFS_SOFIA_Release_110711.pdf
 |arkivdato   = 2012-04-02
 |besøksdato = 2012-08-07
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}}</ref>

<ref name="Venetia">{{Kilde www
 |tittel         = The girl who named a planet
 |utgiver        = BBC News
 |forfatter      = Rincon, P.
 |verk           = Pluto: The Discovery of Planet X
 |url            = http://news.bbc.co.uk/1/hi/sci/tech/4596246.stm
 |utgivelsesdato = 2006-01-13
 |arkiv_url      = https://www.webcitation.org/615UIHcvO?url=http://news.bbc.co.uk/1/hi/sci/tech/4596246.stm
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 |besøksdato    = 2012-08-08
 |språk         = en
 |url-status    = død 
}}</ref>

<ref name="Williams2005">{{Kilde www
 |tittel=Pluto Kuiper Express 
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 |arkiv_url=https://web.archive.org/web/20110628200401/http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=PLUTOKE 
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 |dato=2005 
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<ref name="Williams2010">{{Kilde www
 |url            = http://nssdc.gsfc.nasa.gov/planetary/factsheet
 |forfatter      = Williams, David R.
 |tittel         = Planetary Fact Sheet&nbsp;— Metric
 |utgiver        = NASA Goddard Space Flight Center
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 |arkivdato      = 2011-08-20
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 |språk         = en
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}}</ref>

<ref name="WilliamsEdu2003">{{Kilde www
 |url=http://www.williams.edu/admin/news/releases.php?id=162 
 |tittel=Williams Scientists Contribute to New Finding About Pluto 
 |utgiver=Williams College 
 |utgivelsesdato=2003-07-09 
 |arkiv_url=https://web.archive.org/web/20071011063547/http://williams.edu/admin/news/releases.php?id=162 
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}}</ref>

<ref name="Young1997">{{Kilde www
 |tittel      = The Once and Future Pluto
 |forfatter   = Young, Leslie
 |verk        = Southwest Research Institute, Boulder, Colorado
 |url         = http://www.boulder.swri.edu/~layoung/projects/talks03/IfA-jan03v1.ppt
 |format      = [[Microsoft Office PowerPoint|PowerPoint]]
 |arkiv_url   = https://web.archive.org/web/20120818161716/http://www.boulder.swri.edu/~layoung/projects/talks03/IfA-jan03v1.ppt
 |arkivdato   = 2012-08-18
 |besøksdato = 2012-08-05
 |språk      = en
 |dato        = 1997
 |url-status = død
}}</ref>
</references>