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To the unfaded memory of Sergeî L'vovich Sobolev.
The research was financially supported by the Russian Foundation for Basic Research (Grants 97-01-01092. 96-01-01769, and 96-15-96291).
Novosibirsk. Translated fromSibirskiî Matematicheskiî Zhurnal, Vol. 39, No. 4, pp. 776–795, July–August, 1998.
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Vodop'yanov, S.K., Ukhlov, A.D. Sobolev spaces and (P,Q)-quasiconformal mappings of carnot groups. Sib Math J 39, 665–682 (1998). https://doi.org/10.1007/BF02673052
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DOI: https://doi.org/10.1007/BF02673052