1. V. A. Darenskii et al., in: Fiber Materials from Ukrainian Basalts [in Russian], Tekhnika, Kiev (1971).
2. D. D. Dzhigiris, R. P. Polevoi, P. P. Polevoi, and M. F. Makhova, Steklo Keram, No. 10 (1974).
3. D. D. Dzhigiris, R. P. Polevoi, and P. P. Polevoi, Budivel'ni Materiali Konstruk., No. 4 (1974).