Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1985_37_1_a7, author = {V. E. Slyusarchuk}, title = {Instability of differential equations with respect to the first approximation}, journal = {Matemati\v{c}eskie zametki}, pages = {72--77}, publisher = {mathdoc}, volume = {37}, number = {1}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1985_37_1_a7/} }
V. E. Slyusarchuk. Instability of differential equations with respect to the first approximation. Matematičeskie zametki, Tome 37 (1985) no. 1, pp. 72-77. http://geodesic.mathdoc.fr/item/MZM_1985_37_1_a7/