@article{DAN_1958_123_1_a1,
     author = {S. I. Adian},
     title = {On algorithmic problems in effectively complete classes of groups},
     journal = {Doklady Akademii Nauk},
     pages = {13--16},
     publisher = {mathdoc},
     volume = {123},
     number = {1},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_123_1_a1/}
}