Koray Gulsoy, Sezgin, and Fatih Ozturk. “Kraft Pulping Properties of European Black Pine Cone”. Maderas-Cienc Tecnol 17, no. 4 (December 4, 2015): 875–882. Accessed April 26, 2024. https://revistas.ubiobio.cl/index.php/MCT/article/view/2192.