共 12 条
[1]
BIELENBERG H, 1965, SCHWEINEZUCHT SCHWEI, V13, P292
[2]
Biering-Sorensen U., 1959, Medlemsblad for den danske Dyrlaegeforening, V42, P524
[3]
DEBRUIN JJ, 1965, TIJDSCHR DIERGENEESK, V87, P847
[4]
FULLER YL, 1962, BEHAVIOUR DOMESTIC A, P75
[5]
HAUGSE C. N., 1965, North Dakota Farm Research, V23, P18
[6]
JUSTESEN R., 1959, Medlemsblad for den danske Dyrlaegeforening, V42, P313
[7]
KNAP J, 1964, ZIVOCISNA VYROBA, V36, P739
[8]
Mohr E., 1960, WILDE SCHWEINE
[9]
SAINSBURY DWB, 1966, PIG FG, V33, P35
[10]
Van Rees A. L. A., 1964, Tijdschrift voor Diergeneeskunde, V89, P136