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Additional information
Novosibirsk State Pedagogic Institute. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 20, No. 3, pp. 548–556, May–June, 1979.
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Ivanov, A.M. Radicals in the category of all torsion-free Abelian groups. Sib Math J 20, 384–390 (1979). https://doi.org/10.1007/BF00969943
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DOI: https://doi.org/10.1007/BF00969943