@article{DAN_1978_241_4_a0,
     author = {S. I. Adian},
     title = {On the simplicity of periodic products of groups},
     journal = {Doklady Akademii Nauk},
     pages = {745--748},
     publisher = {mathdoc},
     volume = {241},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_4_a0/}
}