1. Brent, D. & Reid, K.J. (1987) Conference on Plasma Processing and Synthesis of Materials, pp. 399-404 Materials Research Society, PA, USA.
2. Cui, S. , Qu, P. , Li, J. & Lui, Q. (1984) In: Fine, H.A. & Gaskell, D.R. (eds.): Proc. Second International Symposium on Metallurgical Slags and Fluxes, Lake Tahoe, Nevada, Nov. 11-14, pp. 573-582 .
3. Deng, G. , Zi, L. & Zhai, J. (1989) Proceedings of International Symposium on Exploitation and Utilisation of Vanadium bearing Titanomagnetite, Industry Press Panzhihua, China, Nov., 351 , pp. 14-16 .