Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1994_33_3_a5, author = {U. U. Umirbaev}, title = {On {Schreier} varieties of algebras}, journal = {Algebra i logika}, pages = {317--340}, publisher = {mathdoc}, volume = {33}, number = {3}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1994_33_3_a5/} }
U. U. Umirbaev. On Schreier varieties of algebras. Algebra i logika, Tome 33 (1994) no. 3, pp. 317-340. http://geodesic.mathdoc.fr/item/AL_1994_33_3_a5/