共 50 条
- [36] COST OF REPRODUCTION IN DOUGLAS-FIR CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 1992, 70 (07): : 1429 - 1432
- [39] Thinning experiments in young Douglas fir JOURNAL OF AGRICULTURAL RESEARCH, 1931, 43 : 0537 - 0546
- [40] THE DOUGLAS-FIR IN THE EASTERN SAUERLAND ALLGEMEINE FORST UND JAGDZEITUNG, 1984, 155 (01): : 11 - 14