2017). Robert Jeffrey. Scotland's Cruel Sea: Heroism and Disaster off the Scottish Coast. Black & White Publishing. 6 November 2014: 21. ISBN 978-1-84502-887-9
Library of Norway (in Norwegian), accessdate=2010-12-10 [5], Norsk biografisk leksikon-Norwegian Biografical encyclopedia (in Norwegian), accessdate=2010-12-10
English by A. G. Chater, and published as The South Pole: An Account of the Norwegian Antarctic Expedition in the "Fram," 1910–1912. (London: John Murray. 1912)