@article{FPM_2019_22_5_a4,
     author = {S. Ya. Grinshpon and M. M. Nikolskaya},
     title = {Abelian groups isomorphic to a~proper fully invariant subgroup},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {29--53},
     publisher = {mathdoc},
     volume = {22},
     number = {5},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2019_22_5_a4/}
}