「Second-Log Branch Size Comparison Between Even-aged and Multiaged Douglas-fir Stands in Coastal Northern California」. Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS) 12, no. 1 (4月 20, 2020): 50–61(12). 参照 9月 11, 2026. https://tmp.mcfns.com/index.php/Journal/article/view/12.4.