By Isakova M.   Makhnev A.   in Doklady Mathematics

ISSN:1064-5624|88|2|548-551

MAIK Nauka/Interperiodica‎(2013)‎

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By Prodan V.   Bozhko G.   Vasiliev A.   Isakova M.   in Chemical and Petroleum Engineering

ISSN:0009-2355|46|3-4|233-236

Springer Publishing Company ‎(2010)‎

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