1. F. Jelinek,Reactivity of Solids 5 (1988) 323.
2. S. Mrowec,ibid. 5 (1988) 241.
3. F. Jelinek, in “MTP international review of science inorganic chemistry”, series I, Vol. 5 (Butterworth, London, 1972) p. 339.
4. G. M. Gusev, in “Mechanochimičeskije javlenija pri sverchtonkom izmelěniji”, (AN SSSR, Novosibirsk, 1971) p. 110.