Qu J, Zhang T, Lv G, Chen Y. New process for extracting vanadium by direct calcification using the heat of molten vanadium slag. J Min & Metal B Metallurgy [Internet]. 2022Oct.27 [cited 2024Aug.21];58(3):355-6. Available from: https://aseestant.ceon.rs/index.php/jmm/article/view/35709