
doi: 10.1007/bf02105092
Translation from Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 132, 17-25 (Russian) (1983; Zbl 0524.20029).
Torsion-free groups, finite rank, Direct sums, direct products, etc. for abelian groups, problem 68, Subgroups of abelian groups, direct sum of indecomposable groups, torsion-free Abelian groups of finite rank, Abelian groups
Torsion-free groups, finite rank, Direct sums, direct products, etc. for abelian groups, problem 68, Subgroups of abelian groups, direct sum of indecomposable groups, torsion-free Abelian groups of finite rank, Abelian groups
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