1985 · G. A. Nasyrov, K. Kurbanmuradov, et al. · Akademiia Nauk Turkmenskoi SSR Izvestiia Seriia Fiziko Tekhnicheskikh Khimicheskikh i Geologicheskikh Nauk
1985 · Kh. Mammedov, G. A. Nasyrov, et al. · Akademiia Nauk Turkmenskoi SSR Izvestiia Seriia Fiziko Tekhnicheskikh Khimicheskikh i Geologicheskikh Nauk
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