@article{SM_1979_35_4_a8,
     author = {A. A. Shafiro and V. P. Shunkov},
     title = {A~characterization of infinite {Chernikov} groups that are not finite extensions of quasi-cyclic groups},
     journal = {Sbornik. Mathematics},
     pages = {569--580},
     year = {1979},
     volume = {35},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1979_35_4_a8/}
}