Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1948__64_2_a0, author = {{\CYRA}. {\CYRT}{\cyri}{\cyrh}{\cyro}{\cyrn}{\cyro}{\cyrv}}, title = {{\CYRO} {\cyrz}{\cyra}{\cyrv}{\cyri}{\cyrs}{\cyri}{\cyrm}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrr}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyrd}{\cyri}{\cyrf}{\cyrf}{\cyre}{\cyrr}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt} {\cyro}{\cyrt} {\cyrm}{\cyra}{\cyrl}{\cyro}{\cyrg}{\cyro} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyra}}, journal = {Matemati\v{c}eskij sbornik}, pages = {193--204}, publisher = {mathdoc}, volume = {64}, number = {2}, year = {1948}, zbl = {0037.34401}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1948__64_2_a0/} }
А. Тихонов. О зависимости решений дифференциальных уравнений от малого параметра. Matematičeskij sbornik, Tome 64 (1948) no. 2, pp. 193-204. http://geodesic.mathdoc.fr/item/MS_1948__64_2_a0/