M. Boonstra, “Microstructural and physical aspects of heat treated wood. Part 1. Softwoods”, Maderas-Cienc Tecnol, vol. 8, no. 3, pp. 193–208, Dec. 2014, Accessed: Oct. 27, 2026. [Online]. Available: https://revistas.ubiobio.cl/index.php/MCT/article/view/1469