@article{DAN_1970_190_3_a1,
     author = {S. I. Adian},
     title = {Infinite irreducible systems of group identities},
     journal = {Doklady Akademii Nauk},
     pages = {499--501},
     publisher = {mathdoc},
     volume = {190},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_190_3_a1/}
}