1. Yu. D. Gurevich and N. V. Gvozdev, Processing of Arsenic Raw. Review (NIITEKhIM, Moscow, 1983) [in Russian].
2. G. G. Devyatykh, Production and Analysis of Pure Substances (Nauka, Moscow, 1970) [in Russian].
3. G. Kamai and B. D. Chernokal’skii, Reactions and Methods of Investigating Organic Compounds (Nauka, Moscow, 1964), Vol. 13, p. 26 [in Russian].
4. A. A. Efremov, E. E. Grinberg, A. P. Omiadze, et al., Vysokochist. Veshchestva, No. 2, 54 (1992).
5. B. A. Knyazev, V. F. Vakher, V. P. Belolipetskii, and E. E. Grinberg, Avt. Svid. SSSR No. 1 804 720 (1992).