Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1960__92_4_a2, author = {{\CYRA}.{\CYRM}. {\CYRI}{\cyrl}{\cyrsftsn}{\cyri}{\cyrn}}, title = {{\CYRV}{\cyrery}{\cyrr}{\cyro}{\cyrzh}{\cyrd}{\cyra}{\cyryu}{\cyrshch}{\cyri}{\cyre}{\cyrs}{\cyrya} {\cyrerev}{\cyrl}{\cyrl}{\cyri}{\cyrp}{\cyrt}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyre} {\cyri} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrb}{\cyro}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyre} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya}}, journal = {Matemati\v{c}eskij sbornik}, pages = {443--498}, publisher = {mathdoc}, volume = {92}, number = {4}, year = {1960}, zbl = {0103.31601}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1960__92_4_a2/} }
А.М. Ильин. Вырождающиеся эллиптические и параболические уравнения. Matematičeskij sbornik, Tome 92 (1960) no. 4, pp. 443-498. http://geodesic.mathdoc.fr/item/MS_1960__92_4_a2/