bn-2011-10-3http://www.ipgg.sbras.ru/ru/Files/publications/ibc/bn-2011-10-3.pdfbn-2011-10-3publ-gazovaya-promyshlennost-rossii-mezhdunarodnye-pozitsii-2011-033217

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publ-gazovaya-promyshlennost-rossii-mezhdunarodnye-pozitsii-2011-033217