Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1980_3_a12, author = {F. M. Ablayev}, title = {The problem of reduction of automata}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {75--77}, publisher = {mathdoc}, number = {3}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1980_3_a12/} }
F. M. Ablayev. The problem of reduction of automata. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1980), pp. 75-77. http://geodesic.mathdoc.fr/item/IVM_1980_3_a12/