Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1987_41_6_a1, author = {S. N. Tronin}, title = {Commutative associative projective algebras of rank two over a perfect field}, journal = {Matemati\v{c}eskie zametki}, pages = {776--780}, publisher = {mathdoc}, volume = {41}, number = {6}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_41_6_a1/} }
S. N. Tronin. Commutative associative projective algebras of rank two over a perfect field. Matematičeskie zametki, Tome 41 (1987) no. 6, pp. 776-780. http://geodesic.mathdoc.fr/item/MZM_1987_41_6_a1/