共 13 条
[1]
ALABACK PB, 1989, FIELD EFFICIENT SAMP
[2]
ARNEY JD, 1973, BCX78 CAN FOR SERV P
[3]
BARNES GH, 1962, TECH B USDA, V1273
[4]
CURTIS RO, 1970, FOREST SCI, V16, P403
[5]
FARR WA, 1979, FOREST SCI, V25, P145
[8]
GILPIN WJ, 1965, RELATION CROWN WIDTH
[9]
HANN DW, 1975, USDA INT190 FOR SERV
[10]
KRAJICEK JOHN E., 1961, FOREST SCI, V7, P35