共 7 条
[1]
CURTIS RO, 1967, FOREST SCI, V13, P365
[2]
HYINK DM, 1988, USDA NC120 FOR SERV, P9
[3]
KRUMLAND BE, 1978, WEST J APPL FOR, V3, P113
[4]
MONNESS EN, 1982, NOR I SKOGFORSK, V36, P1
[6]
Olsson D. M., 1974, Journal of Quality Technology, V6, P53