Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1975_11_7_a0, author = {B. I. Anan'ev}, title = {An existence theorem for a differential inclusion with variable lag}, journal = {Differencialʹnye uravneni\^a}, pages = {1155--1158}, publisher = {mathdoc}, volume = {11}, number = {7}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1975_11_7_a0/} }
B. I. Anan'ev. An existence theorem for a differential inclusion with variable lag. Differencialʹnye uravneniâ, Tome 11 (1975) no. 7, pp. 1155-1158. http://geodesic.mathdoc.fr/item/DE_1975_11_7_a0/