HURWITZ, Stephan; RØSTAD, Helge; JOHNSEN, Jon. Meddelelser. Nordisk Tidsskrift for Kriminalvidenskab, [S. l.], v. 49, n. 1, p. 101–102, 1961. DOI: 10.7146/ntfk.v49i1.70464. Disponível em: https://tidsskrift.dk/NTfK/article/view/70464. Acesso em: 6 dec. 2025.