共 32 条
[21]
Mattheck Claus, 1994, Arboricultural Journal, V18, P1
[22]
Nicoll B. C., 1995, P276, DOI 10.1017/CBO9780511600425.017
[23]
RIEDL H, 1937, JB WISSENSCHAFTLICHE, P1
[24]
Schweingruber F.H., 1990, ANATOMIE EUROPAISCHE
[25]
SELBT G, 1964, ALLGEMEINE FORST JAG, V135, P66
[26]
SHARON E M, 1973, Canadian Journal of Forest Research, V3, P83, DOI 10.1139/x73-012
[29]
Stokes A., 1995, P264, DOI 10.1017/CBO9780511600425.016
[30]
STOKES A, 1994, THESIS U YORK UK