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@article{MS_1952__73_3_a7, author = {{\CYRA}.{\CYRB}. {\CYRV}{\cyra}{\cyrs}{\cyri}{\cyrl}{\cyrsftsn}{\cyre}{\cyrv}{\cyra}}, title = {{\CYRO} {\cyrd}{\cyri}{\cyrf}{\cyrf}{\cyre}{\cyrr}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyrery}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya}{\cyrh}, {\cyrs}{\cyro}{\cyrd}{\cyre}{\cyrr}{\cyrzh}{\cyra}{\cyrshch}{\cyri}{\cyrh} {\cyrm}{\cyra}{\cyrl}{\cyrery}{\cyre} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyrery}}, journal = {Matemati\v{c}eskij sbornik}, pages = {587--644}, publisher = {mathdoc}, volume = {73}, number = {3}, year = {1952}, zbl = {0048.07102}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1952__73_3_a7/} }
А.Б. Васильева. О дифференциальных уравнениях, содержащих малые параметры. Matematičeskij sbornik, Tome 73 (1952) no. 3, pp. 587-644. http://geodesic.mathdoc.fr/item/MS_1952__73_3_a7/