共 26 条
- [1] DUNN LC, 1923, AM NAT, V57, P289
- [2] FREDRIKSEN L, 1924, STAT OPLYSNINGER KVA, P299
- [3] FUNKQUIST H, 1926, AVELSFOR SVENSK LAAG, P1
- [4] GILBEY W, 1904, LIVE STOCK J ALMANAC, P31
- [5] HADLEY F. B., 1927, JOUR AMER VET MED ASSOC, V70, P492
- [7] HANSSON N, 1918, HUSDJURLARA STOCKHOL, P1
- [8] Jennings HS, 1916, GENETICS, V1, P53
- [9] KJAER A, 1923, REGISTER STAMBOK HES, V1, pR5
- [10] LEUFVEN G, 1919, TIDSSKR LANDLMAN, V2, P309