Sivacioglu, A, and S Ayan. “Evaluation of Seed Production of Scots Pine (<i>Pinus Sylvestris L.</I>) Clonal Seed Orchard With Cone Analysis Method”. African Journal of Biotechnology 7, no. 24 (September 17, 2010). Accessed August 30, 2026. https://www.ajol.info/index.php/ajb/article/view/59596.