@article{MZM_1973_14_6_a11,
     author = {A. M. Sebel'din},
     title = {Complete direct sums of {Abelian} torsion-free groups of rank 1 with isomorphic groups or rings of endomorphisms. {I}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {867--878},
     publisher = {mathdoc},
     volume = {14},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1973_14_6_a11/}
}