@article{DAN_1978_241_5_a1,
     author = {Do Long Van},
     title = {On the word and conjugacy problems for some classes of finitely presented groups},
     journal = {Doklady Akademii Nauk},
     pages = {1005--1008},
     publisher = {mathdoc},
     volume = {241},
     number = {5},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_5_a1/}
}