Voir la notice de l'article provenant de la source Math-Net.Ru
@misc{DE_1997_33_12_a18, title = {\`Eduard {Iosifovich} {Grudo}}, journal = {Differencialʹnye uravneni\^a}, pages = {1708--1713}, publisher = {mathdoc}, volume = {33}, number = {12}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1997_33_12_a18/} }
\`Eduard Iosifovich Grudo. Differencialʹnye uravneniâ, Tome 33 (1997) no. 12, pp. 1708-1713. http://geodesic.mathdoc.fr/item/DE_1997_33_12_a18/