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@article{AL_1980_19_2_a2, author = {V. K. Kartashov}, title = {Quasivarieties of unars with a finite number of cycles}, journal = {Algebra i logika}, pages = {173--193}, publisher = {mathdoc}, volume = {19}, number = {2}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1980_19_2_a2/} }
V. K. Kartashov. Quasivarieties of unars with a finite number of cycles. Algebra i logika, Tome 19 (1980) no. 2, pp. 173-193. http://geodesic.mathdoc.fr/item/AL_1980_19_2_a2/