1. Potamogetonaceae fruits. I. Recent and subfossil endocarps of the Fennoscandian species;Aalto;Acta Bot. Fenn.,1970
2. Danish finds of Mammoth (Mammuthus primigenius (Blumenbach)). Stratigraphical position, dating and evidence of Late Pleistocene environment;Aaris-Sørensen;Dan. Geol. Unders., B,1990
3. Merkmalsverschiebung an den oberen Molaren von Dicrostonyx (Rodentia, Mammalia) im Jungquartär;Agadjanian;Neues Jahrb. Geol. Paläontol. Abh.,1977
4. Stratigraphy of Quaternary Deposits in the Skærumhede II boring: lithology, molluscs and foraminifera;Bahnson;Dan. Geol. Unders. Årb.,1974
5. The Mammals of Canada;Banfield,1974