Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1983_19_1_a20, author = {A. Yanushauskas}, title = {A type of degeneration of elliptic systems}, journal = {Differencialʹnye uravneni\^a}, pages = {152--160}, publisher = {mathdoc}, volume = {19}, number = {1}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1983_19_1_a20/} }
A. Yanushauskas. A type of degeneration of elliptic systems. Differencialʹnye uravneniâ, Tome 19 (1983) no. 1, pp. 152-160. http://geodesic.mathdoc.fr/item/DE_1983_19_1_a20/