@article{DAN_1960_135_6_a0,
     author = {S. I. Adian},
     title = {The problem of identity in associative systems of a special form},
     journal = {Doklady Akademii Nauk},
     pages = {1297--1300},
     year = {1960},
     volume = {135},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_135_6_a0/}
}