Damgaard Petersen, I. “Carl-Axel Gemzell: Organization, Conflict and Innovation. A Study of German Naval Strategic Planning, 1888-1940. Lund Studies in International History. Scandinavian University Books 1973. Lund, Esselte Studium 1973. 448 S. S.Kr. 115:-”. Historisk Tidsskrift, bd. 13, januar 1977, https://tidsskrift.dk/historisktidsskrift/article/view/51929.