HØIRUP, Henning. Forord. Grundtvig-Studier, [S. l.], v. 20, n. 1, p. 7, 1967. DOI: 10.7146/grs.v20i1.13315. Disponível em: https://tidsskrift.dk/grs/article/view/13315. Acesso em: 6 dec. 2025.