Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1997_33_8_a9, author = {G. S. Balashova}, title = {Differential equations of infinite order with subordinate terms}, journal = {Differencialʹnye uravneni\^a}, pages = {1076--1084}, publisher = {mathdoc}, volume = {33}, number = {8}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1997_33_8_a9/} }
G. S. Balashova. Differential equations of infinite order with subordinate terms. Differencialʹnye uravneniâ, Tome 33 (1997) no. 8, pp. 1076-1084. http://geodesic.mathdoc.fr/item/DE_1997_33_8_a9/