Studies in V egetational History in honour of Knud Jessen. Danmarks Geologiske Undersøgelse II. Række, [S. l.], v. 80, p. 1–308, 1954. DOI: 10.34194/raekke2.v80.6870. Disponível em: https://geusjournals.org/index.php/raekke2/article/view/6870. Acesso em: 25 dec. 2025.