共 18 条
[1]
BURKHARDT TH, 1975, T ASAE, V18, P434, DOI 10.13031/2013.36605
[2]
BURKHARDT TH, 1975, T ASAE, V18, P443
[3]
CHESLEY KG, 1956, Patent No. 2750414
[4]
DAVIS HG, 1981, LBL12331 U CALIF
[5]
DOBIE JB, 1977, T ASAE, V20, P1018, DOI 10.13031/2013.35694
[6]
GARRETT WN, 1981, J ANIM SC, V51, P409
[7]
HART MR, 1975, FEEDSTUFFS, V47, P22
[8]
HART MR, 1975, FEEDSTUFFS, V47, P26
[9]
HART MR, 1975, FEEDSTUFFS, V47, P23
[10]
JONES FT, 1975, MICROSCOPE, V23, P37