Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1960_131_4_a4, author = {K. Kordunyanu}, title = {On the existence of bounded solutions for some non-linear differential systems}, journal = {Doklady Akademii Nauk}, pages = {735--737}, publisher = {mathdoc}, volume = {131}, number = {4}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_131_4_a4/} }
K. Kordunyanu. On the existence of bounded solutions for some non-linear differential systems. Doklady Akademii Nauk, Tome 131 (1960) no. 4, pp. 735-737. http://geodesic.mathdoc.fr/item/DAN_1960_131_4_a4/