Boonstra, M.J., J.F. Rijsdijk, C. Sander, E. Kegel, B. Tjeerdsma, H. Militz, J. Van Acker, and M. Stevens. 2014. “Microstructural and Physical Aspects of Heat Treated Wood. Part 2. Hardwoods”. Maderas-Cienc Tecnol 8 (3):209-17. https://revistas.ubiobio.cl/index.php/MCT/article/view/1471.