1. A. M. Askhabov, Regeneration of Crystals (Nauka, Moscow, 1979) [in Russian].
2. A. A. Shternberg, Growth of Crystals (Nauka, Moscow, 1972), p. 152 [in Russian].
3. A. V. Belyustin, A. V. Kolina, and N. S. Stepanov, in Growth of Crystals: Collected Works (Nauka, Moscow, 1961), p. 152 [in Russian].
4. D. N. Artem’ev, Method of Crystallization of Spheres and Its Application in Study of the Shape and Structure of Crystalline Materials (Petrograd, 1914) [in Russian].
5. N. P. Yushkin, A. M. Askhabov, and A. F. Kunts, Geochemistry, Mineralogy, and Petrography (Nauka, Moscow, 1976), p. 241 [in Russian].