„Second-Log Branch Size Comparison Between Even-aged and Multiaged Douglas-fir Stands in Coastal Northern California“, Math. Comput. For. Nat. Res. Sci., sv. 12, izd. 1, str. 50–61(12), tra. 2020, Pristupljeno: 01. rujan 2026. [Na internetu]. Dostupno na: https://v3.mcfns.com/index.php/Journal/article/view/12.4