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Translated fromSibirskii Matematicheskii Zhurnal, Vol. 37, No. 3, pp. 492–499, May–June, 1996.
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Asiáin, M.J. Classes of generalized nilpotent and soluble groups. Sib Math J 37, 423–429 (1996). https://doi.org/10.1007/BF02104843
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DOI: https://doi.org/10.1007/BF02104843