Kiaei, Majid, Behzad Kord, and Ramin Vaysi. 2014. “Influence of Residual Lignin Content on Physical and Mechanical Properties of Kraft pulp/Pp Composites”. Maderas. Ciencia Y Tecnología 16 (4):495-503. https://revistas.ubiobio.cl/index.php/MCT/article/view/1184.