Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1978_24_6_a4, author = {G. G. Braichev and V. V. Morzhakov}, title = {Applicability of partial differential operators of infinite order}, journal = {Matemati\v{c}eskie zametki}, pages = {771--777}, publisher = {mathdoc}, volume = {24}, number = {6}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1978_24_6_a4/} }
G. G. Braichev; V. V. Morzhakov. Applicability of partial differential operators of infinite order. Matematičeskie zametki, Tome 24 (1978) no. 6, pp. 771-777. http://geodesic.mathdoc.fr/item/MZM_1978_24_6_a4/