* Schroepfer, R., P. Wiegand, H. Hogrefe. 1997. The implications of territoriality for the social system of the European pine marten, /''Martes martes'' (L., 1758). Zeitschrift fuer Saeugetierkunde, 62: 209-218. | * Schroepfer, R., P. Wiegand, H. Hogrefe. 1997. The implications of territoriality for the social system of the European pine marten, /''Martes martes'' (L., 1758). Zeitschrift fuer Saeugetierkunde, 62: 209-218. |