Redigerer Roald Berg (professor) (avsnitt)

=== Vitenskapelige artikler (utvalg) ===
* «Det land vi venter hjælp af.» England som Norges beskytter 1905–1908, i Rolf Tamnes (red.), i ''Forsvarsstudier'', 1985: 111–164.
* Med Eva Jakobsson: «Nature and Diplomacy: The Struggle over the Scandinavian Border Rivers in 1905», i ''Scandinavian Journal of History'', 2006: 270–289.
* «Norwegian attitudes towards Britain, 1814–1914», i Helge Ø. Pharo & Patrick Salmon (eds.), ''Britain and Norway. Special relationships'', Oslo: Akademika 2012: 23–50.
*«Norway’s Foreign Politics during the Union with Sweden, 1814–1905: A Reconsideration», Diplomacy & Statecraft, 2020: 1–21.
* «'to be Norwegians, not Swedish'. Identity Adaptations in the Norwegian Officers Corps, 1814–45», in Michael Broers & Ambrogio Caiani (eds.): ''A History of the European Restauration'', vol. 1, Governments, States and Monarchy, London: Bloomsbury Acadmic 2020: 225–234.
* «The Svalbard 'Channel' 1920–2020 – A Geopolitical Sketch», i Joachim Weber (ed.): ''Handbook on Geopolitics and Security in the Arctic'', Springer Nature 2020: 303–322.
* «The Genesis of the Spitsbergen/Svalbard Treaty, 1871–1920», i Adrian Howkins & Peder Roberts (eds.): ''The Cambridge History of the Polar Regions,'' Cambridge: Cambridge University Press 2023: 354–377.
* Med Klaus Dodds, «Between Gateway and Theatre: Geopolitics, History and the Framing of Svalbard», i Mathias Albert, Dina Brode-Roger & Lisbeth Iversen (eds., ''Svalbard Imaginaries. The Making of an Arctic Archipelago'', Palgrave Macmillan Cham 2023: 19-41. 
* Foreign policy (Norway), i ''International encyclopedia of the First World War,'' Freie Universität Berlin 2024, <nowiki>https://encyclopedia.1914-1918-online.net/</nowiki>