Reference
Nilton C. Cáceres, Emygdio L. A. Monteiro-Filho (1998): Population dynamics of the Common opossum, Didelphis marsupialis
(Mammalia, Marsupialia), in southern Brazil
Population dynamics of the Common opossum, Didelphis marsupialis
(Mammalia, Marsupialia), in southern Brazil – Mammalian Biology (früher Zeitschrift für Säugetierkunde) – 63: 169 - 172.