Carbothermal and boron carbide reduction of oxides of some transition metalsYuriy L. Krutskii, Tatiana M. Krutskaya, Tatiana S. Gudyma, Konstantin B. Gerasimov, Roman R. Khabirov and Anna V. MassMATEC Web Conf., 340 (2021) 01040DOI: https://doi.org/10.1051/matecconf/202134001040