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@article{AL_1970_9_2_a1, author = {L. A. Bokut'}, title = {Unsolvability of certain algorithmic problems in a class of}, journal = {Algebra i logika}, pages = {137--144}, publisher = {mathdoc}, volume = {9}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1970_9_2_a1/} }
L. A. Bokut'. Unsolvability of certain algorithmic problems in a class of. Algebra i logika, Tome 9 (1970) no. 2, pp. 137-144. http://geodesic.mathdoc.fr/item/AL_1970_9_2_a1/