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Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 4, pp. 1–2, April, 1974.
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Terzyan, G.O. Collaboration of Comecon member countries in the field of chemical-machinery and petroleum-machinery construction (on the occasion of Comecon's 25th anniversary). Chem Petrol Eng 10, 291–294 (1974). https://doi.org/10.1007/BF01145924
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DOI: https://doi.org/10.1007/BF01145924