DUPRÉ, Sven; ROOSE, Alexander. In memoriam Professor dr. Fernand Hallyn (1945-2009). Studium, Amsterdam, v. 3, n. 1, p. 56–59, 2010. DOI: 10.18352/studium.1492. Disponível em: https://platform.openjournals.nl/studium/article/view/20205.. Acesso em: 23 dec. 2024.