Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{MR_1979__14_a9, author = {B. G. Pachpatte}, title = {Integral {Perturbations} of {Nonlinear} {Systems} of {Differential} {Equations}}, journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta} }, pages = {92-97}, publisher = {mathdoc}, volume = {14}, year = {1979}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/MR_1979__14_a9/} }
B. G. Pachpatte. Integral Perturbations of Nonlinear Systems of Differential Equations. Μαθηματική Επιθεώρηση , Tome 14 (1979), p. 92-97. http://geodesic.mathdoc.fr/item/MR_1979__14_a9/