@article{PFMT_2014_2_a7,
     author = {A. M. Gal'mak and N. A. Shchuchkin},
     title = {Cyclic $n$-ary groups and their generalizations},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {46--53},
     publisher = {mathdoc},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2014_2_a7/}
}