Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1980_16_1_a19, author = {G. V. Vasil'eva}, title = {Multidimensional elliptic systems with small terms}, journal = {Differencialʹnye uravneni\^a}, pages = {164--166}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1980_16_1_a19/} }
G. V. Vasil'eva. Multidimensional elliptic systems with small terms. Differencialʹnye uravneniâ, Tome 16 (1980) no. 1, pp. 164-166. http://geodesic.mathdoc.fr/item/DE_1980_16_1_a19/