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@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/} }
V. A. Osipova. The word problem for finitely defined semigroups. Doklady Akademii Nauk, Tome 178 (1968) no. 5, pp. 1017-1020. http://geodesic.mathdoc.fr/item/DAN_1968_178_5_a7/