Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1967_3_4_a12, author = {L. A. Rukhovets}, title = {A remark on the method of fictitious regions}, journal = {Differencialʹnye uravneni\^a}, pages = {698--701}, publisher = {mathdoc}, volume = {3}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1967_3_4_a12/} }
L. A. Rukhovets. A remark on the method of fictitious regions. Differencialʹnye uravneniâ, Tome 3 (1967) no. 4, pp. 698-701. http://geodesic.mathdoc.fr/item/DE_1967_3_4_a12/