Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1971_7_8_a22, author = {Z. B. Seidov}, title = {A certain initial problem for differential equations with retarded argument}, journal = {Differencialʹnye uravneni\^a}, pages = {1534--1537}, publisher = {mathdoc}, volume = {7}, number = {8}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1971_7_8_a22/} }
Z. B. Seidov. A certain initial problem for differential equations with retarded argument. Differencialʹnye uravneniâ, Tome 7 (1971) no. 8, pp. 1534-1537. http://geodesic.mathdoc.fr/item/DE_1971_7_8_a22/