1. Clapperton B. K.(1985).Olfactory communication in the ferret (Mustek furo L.) and its application in wildlife management.Unpubl. PhD thesis Massey University.
2. Zur Biologie des Iltis (Putorius putorius L.);Eibl‐Eibesfeldt I.;Zool. Anz.,1956
3. Scent-marking and its territorial significance in stoats, Mustela erminea
4. Beitrage zur Biologie des Iltis;Goethe F.;Z. Saugetierk.,1940
5. Das Verhalten der Musteliden;Goethe F.;Handb. Zool.,1964