共 4 条
[1]
BEMENT R. E., 1959, JOUR RANGE MANAGEMENT, V12, P296, DOI 10.2307/3894976
[2]
HYDER D. N., 1966, J RANGE MANAGE, V19, P11, DOI 10.2307/3895517
[3]
KLIPPLE G. E., 1961, Journal of Range Management, V14, P57, DOI 10.2307/3894716
[4]
KLIPPLE GE, 1960, 1216 US DEP AGR TECH