共 25 条
- [22] Pucher GW, 1936, J BIOL CHEM, V113, P235
- [23] SCHERSTEN B, 1929, SKAND ARCH PHYSL, V58, P90
- [24] SCHERSTEN B, 1936, SKAND ARCH PHYSL S7, V74
- [25] INFLUENCE OF VARIATION IN LENGTH OF DAY UPON THE BREEDING SEASON IN SHEEP [J]. NATURE, 1947, 160 (4065) : 429 - 430