Elmeros, M., Madsen, A. B., Gårdmand, B., Madsen, A. B. (Ed.), Asferg, T. (Ed.), Elmeros, M. (Ed.) & Zaluski, K. (Ed.) (1998).
Reproductive Timing in Danish Otters (Lutra lutra) - Preliminary Results. In
NERI Technical Report (pp. 17-18). National Environmental Research Institute.
Mehlum, F., Black, J. M.
, Madsen, J. (Ed.), Mehlum, F. (Ed.), Black, J. (Ed.) & Madsen, J. (Ed.) (1998).
Research on Arctic Geese: Proceedings of the Svalbard Goose Symposium, Oslo, Norway, 23-26 September 1997.