Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1986_40_6_a0, author = {A. A. Boyarkin}, title = {Extensions of $PI$-algebras}, journal = {Matemati\v{c}eskie zametki}, pages = {705--712}, publisher = {mathdoc}, volume = {40}, number = {6}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1986_40_6_a0/} }
A. A. Boyarkin. Extensions of $PI$-algebras. Matematičeskie zametki, Tome 40 (1986) no. 6, pp. 705-712. http://geodesic.mathdoc.fr/item/MZM_1986_40_6_a0/