Gelperin N.I.,  Pebalk V.L.,  i dr. Struktura potokov i effektivnost kolonnykh apparatov khimicheskoy promyshlennosti./Helperin N.I.,  Pebalk V.L.,  et al. Structure of flows and efficiency of column apparatus of the chemical industry. In Russian - landofmagazines.com

TransliterationGelperin N.I., Pebalk V.L., i dr. Struktura potokov i effektivnost kolonnykh apparatov khimicheskoy promyshlennosti.

In EnglishHelperin N.I., Pebalk V.L., et al. Structure of flows and efficiency of column apparatus of the chemical industry. In Russian

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