共 18 条
[1]
BROOKS MH, 1958, 10 P INT C GEN MONTR, V2, P36
[3]
CLAUSEN J, 1954, 9 P INT C GEN CAR S, V6, P469
[4]
CLAUSEN J, 1958, 1958 SCOTT PLANT BRE, P41
[5]
Evans MW, 1934, J AGRIC RES, V48, P0571
[6]
GUSTAFFSON A, 1947, LUNDS U ARSSKR, V42, P1
[8]
HESLOP-HARRISON J., 1964, ADVANCE ECOL RES, V2, P159
[9]
HESLOPHARRISON J, 1961, RECENT ADV BOT, V1, P891
[10]
KNOX R. B., 1963, BOT NOTISER, V116, P127