1. V. D. Prisyazhnyi, Yu. V. Kosov, and G. G. Yaremchuk, Ukr. Khim. Zh., 53, No. 11, 1143–1145 (1987).
2. Om. Parkash, D. Kumar, and A. Gupta, Mat. Res. Bull., 22, No. 5, 623–629 (1987).
3. Yu. V. Kosov, V. D. Prisyazhnyi, M. M. Gafurov, and G. G. Yaremchuk, Ukr. Khim. Zh., 55, No. 1, 19–22 (1989).
4. Y. W. Chen-Yang, H. C. Chen, F. G. Lin, et al., Solid. State Ion., 156, Nos. 3/4, 383–392 (2003).
5. M. M. Gafurov, V. D. Prisyazhnyi, and A. R. Aliev, Ukr. Khim. Zh., 59, No. 10, 1015–1019 (1993).