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Translated from Itogi Nauki i Tekhniki (Sobremennye Problemy Matematiki), Vol. 2, pp. 5–118, 1973.

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Zalesskii, A.E., Mikhalev, A.V. Group rings. J Math Sci 4, 1–78 (1975). https://doi.org/10.1007/BF01084660

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