@article{DAN_1968_178_5_a7,
     author = {V. A. Osipova},
     title = {The word problem for finitely defined semigroups},
     journal = {Doklady Akademii Nauk},
     pages = {1017--1020},
     publisher = {mathdoc},
     volume = {178},
     number = {5},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_178_5_a7/}
}