@article{FPM_2012_17_8_a7,
     author = {E. V. Kaygorodov},
     title = {Some classes of {Hopfian} {Abelian} groups},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {59--61},
     publisher = {mathdoc},
     volume = {17},
     number = {8},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2012_17_8_a7/}
}