Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1979_15_4_a24, author = {G. P. Homa}, title = {Partial averaging in hyperbolic systems of the standard type}, journal = {Differencialʹnye uravneni\^a}, pages = {747--750}, publisher = {mathdoc}, volume = {15}, number = {4}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1979_15_4_a24/} }
G. P. Homa. Partial averaging in hyperbolic systems of the standard type. Differencialʹnye uravneniâ, Tome 15 (1979) no. 4, pp. 747-750. http://geodesic.mathdoc.fr/item/DE_1979_15_4_a24/