共 18 条
[2]
HALL DW, 1970, FAO90 AGR DEV PAP
[4]
KRUSKAL WH, 1953, J AM STAT ASSOC, V48, P907, DOI 10.2307/2281082
[6]
Linsley E. Gorton, 1944, HILGARDIA, V16, P187
[10]
Oxley T. A., 1948, SCI PRINCIPLES GRAIN