1. R. Wagner, in: A. T. Tumanov (ed.),Crystal Fibers and Material Reinforcement Using Them [Russian translation], Mir, Moscow (1973), pp. 42–117.
2. E. I. Givargizov,Growth of Filamentary and Plastic Crystals from Vapor [in Russian], Nauka, Moscow (1977).
3. A. A. Shchetinin, B. M. Darinskii, B. A. Nebol'sii, and E. E. Popova, Izv. Vyssh. Uchebn. Zaved., Fiz., No. 10, 22–27 (1995) [Sov. Phys. J. (1995)].
4. J. Bloem and L. J. Jiling, Curr. Topics Mater. Sci.,1, No. 5, 7–342 (1978).
5. A. A. Chernov and N. S. Papkov, Kristallografiya22, No. 1, 35–43 (1977).