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Scharffenberg, Katrine Strandsskogen,"Investigations of a tide-line and it's influence on the painting materials in ‘The Source’", Frøysaker, Tine m.fl. (red.), Public paintings by Edvard Munch and his contemporaries. Change and conservation challenges", Oslo 2015, s. 117–125

Stein, Mille, "Edvard Munch's paintings with water stains: Analysis of the Ekely Collection at the Munch Museum", Zeitschrift für Kunsttechnologie und Konservierung, 25. Jahrg., Heft 2, 2012, s. 273–284

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Frøysaker, Tine og Mirjam Liu, "Four (of eleven) unvarnished oil paintings on canvas by Edvard Munch in the Aula of the Oslo University: Preliminary notes on their materials, techniques and original appearances", Restauro. Forum für Restauratoren, Konservatoren und Denkmalpfleger, 115. Jahrg., nr. 1 2009, s. 44–61

Langaard, Johan H., og Reidar Revold, Edvard Munch. Auladekorasjonene, Oslo 1960, s. 46

Bugge, Anders, Munchs Aulabilleder, Oslo 1938, s. 11

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