1. M. Yin, Q.L. Pan, and F. Jiang, Scandium and Scandium alloy (Changsha: Central South University Press, 2007), p. 7. (In Chinese).
2. C. Lin, Res. Metal. Mater. 34, 17 (2008).
3. D. Lash and J.R. Ross, JOM 13, 556 (1961).
4. W. Wang, Y. Pranolo, and C.Y. Cheng, Hydrometallurgy 108, 100 (2011).
5. A. Ata, A. Nazym, and A. Rinat, Miner. Process. Extr. Metall. Rev. 39, 145 (2018).