„Tree Shape and Branch Structure: Mathematical Models“. Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS) 4, no. 1 (Februar 28, 2012): Pages: 2–15 (14). Zugegriffen September 4, 2026. https://v3.mcfns.com/index.php/Journal/article/view/MCFNS.4%3A2.