Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1999_66_5_a9, author = {G. E. Puninskii}, title = {Left almost split morphisms and generalized {Weyl} algebras}, journal = {Matemati\v{c}eskie zametki}, pages = {734--740}, publisher = {mathdoc}, volume = {66}, number = {5}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1999_66_5_a9/} }
G. E. Puninskii. Left almost split morphisms and generalized Weyl algebras. Matematičeskie zametki, Tome 66 (1999) no. 5, pp. 734-740. http://geodesic.mathdoc.fr/item/MZM_1999_66_5_a9/