共 10 条
[1]
BONNER WA, 1961, TETRAHEDRON LETT, P417
[2]
CLEVERDON R, 1939, THESIS OKLAHOMA STAT
[3]
Couch JF, 1927, J AGRIC RES, V35, P0547
[5]
Couch JF, 1930, J AGRIC RES, V40, P0649
[6]
COUGH JF, 1933, 306 US DEP AGR CIR
[7]
DEGRAW JI, 1961, THESIS STANFORD U
[8]
LATHROP CA, 1939, THESIS OKLAHOMA STAT
[9]
MARSH CD, 1926, 1391 US DEP AGR B