GLOB, P. V. Holger Friis, 75år. Kuml, [S. l.], v. 15, n. 15, p. 6–8, 1965. DOI: 10.7146/kuml.v15i15.104490. Disponível em: https://tidsskrift.dk/kuml/article/view/104490. Acesso em: 5 dec. 2024.