共 13 条
- [1] BINKLEY C.S., 1981, B YALE U
- [2] BIRCH T, 1980, NE66 USDA FOR SERV N
- [3] BIRCH TW, 1982, WO1 USDA FOR SERV RE
- [4] BIRCH TW, 1988, NE108 USDA FOR SERV
- [6] Dennis D. F., 1985, Northern Journal of Applied Forestry, V2, P81
- [7] DENNIS DF, 1988, THESIS YALE U NEW HA
- [8] FRIESWYK TS, 1985, NE88 USDA FOR SERV N
- [9] Judge G.G., 1985, INTRO THEORY PRACTIC