共 32 条
[1]
ASHTON G. C., 1960, JOUR AGRIC SCI, V54, P321, DOI 10.1017/S0021859600021249
[4]
ASHTON GC, 1961, J REPROD FERTIL, V2, P117, DOI 10.1530/jrf.0.0020117
[6]
ASHTON GC, 1962, J REPROD FERTIL, V3, P93, DOI 10.1530/jrf.0.0030093
[9]
ASHTON GC, 1962, J AGRIC SCI
[10]
ASHTON GC, 1958, NATURE LOND, V183, P945