Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_2000_39_1_a2, author = {V. A. Gorbunov and M. S. Sheremet}, title = {Horn classes of predicate systems, and varieties of partial algebras}, journal = {Algebra i logika}, pages = {23--46}, publisher = {mathdoc}, volume = {39}, number = {1}, year = {2000}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_2000_39_1_a2/} }
V. A. Gorbunov; M. S. Sheremet. Horn classes of predicate systems, and varieties of partial algebras. Algebra i logika, Tome 39 (2000) no. 1, pp. 23-46. http://geodesic.mathdoc.fr/item/AL_2000_39_1_a2/