@article{TRSPY_1966_85_a0,
     author = {S. I. Adian},
     title = {Defining relations and algorithmic problems for groups and semigroups},
     journal = {Informatics and Automation},
     pages = {3--123},
     publisher = {mathdoc},
     volume = {85},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1966_85_a0/}
}