For citations:

Cherednikova A.V. ON QUASI-ENDOMORPHISM RINGS OF SOME STRONGLY INDECOMPOSABLE TORSION-FREE ABELIAN GROUPS OF RANK 4. Chebyshevskii Sbornik. 2017;18(2):245-255. (In Russ.) https://doi.org/10.22405/2226-8383-2017-18-2-245-255