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@article{AL_1986_25_5_a4, author = {A. S. Morozov}, title = {On a problem of {Bergstra} and {Tiuryn}}, journal = {Algebra i logika}, pages = {566--583}, publisher = {mathdoc}, volume = {25}, number = {5}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1986_25_5_a4/} }
A. S. Morozov. On a problem of Bergstra and Tiuryn. Algebra i logika, Tome 25 (1986) no. 5, pp. 566-583. http://geodesic.mathdoc.fr/item/AL_1986_25_5_a4/