Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1999_66_3_a3, author = {A. V. Glushak}, title = {Regular and singular perturbations of an abstract {Euler--Poisson--Darboux} equation}, journal = {Matemati\v{c}eskie zametki}, pages = {364--371}, publisher = {mathdoc}, volume = {66}, number = {3}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1999_66_3_a3/} }
A. V. Glushak. Regular and singular perturbations of an abstract Euler--Poisson--Darboux equation. Matematičeskie zametki, Tome 66 (1999) no. 3, pp. 364-371. http://geodesic.mathdoc.fr/item/MZM_1999_66_3_a3/