Vladimirovich Sychev, A, V Ivanovich Zhuchkov, V Alekseevna Salina, and I Nikolaevich Kel′. “The Reduction of Boron By Silicothermal Method”. KnE Materials Science 5, no. 1 (March 17, 2019): 126–133. Accessed October 20, 2019. https://knepublishing.com/index.php/KnE-Materials/article/view/3968.