ROLL JAKOBSEN, P. Rock-cored drumlins on Bornholm, Denmark. GEUS Bulletin, Copenhagen, Denmark, v. 26, p. 17–20, 2012. DOI: 10.34194/geusb.v26.4741. Disponível em: https://geusbulletin.org/index.php/geusb/article/view/4741. Acesso em: 3 jul. 2022.