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Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 11, pp. 37–38, November, 1977.
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Nikolaev, V.B. International exhibition “chemistry-77”. Chem Petrol Eng 13, 981–983 (1977). https://doi.org/10.1007/BF01137612
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DOI: https://doi.org/10.1007/BF01137612