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@article{AL_1984_23_4_a5, author = {I. L. Mel'nichuk}, title = {Undecidability of the problems of equality and divisibility in}, journal = {Algebra i logika}, pages = {430--438}, publisher = {mathdoc}, volume = {23}, number = {4}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1984_23_4_a5/} }
I. L. Mel'nichuk. Undecidability of the problems of equality and divisibility in. Algebra i logika, Tome 23 (1984) no. 4, pp. 430-438. http://geodesic.mathdoc.fr/item/AL_1984_23_4_a5/