Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1956__80_3_a0, author = {{\CYRI}.{\CYRL}. {\CYRK}{\cyra}{\cyrr}{\cyro}{\cyrl}{\cyrsftsn}}, title = {{\CYRK} {\cyrt}{\cyre}{\cyro}{\cyrr}{\cyri}{\cyri} {\cyrk}{\cyrr}{\cyra}{\cyre}{\cyrv}{\cyrery}{\cyrh} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch} {\cyrd}{\cyrl}{\cyrya} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrs}{\cyrm}{\cyre}{\cyrsh}{\cyra}{\cyrn}{\cyrn}{\cyro}{\cyrg}{\cyro} {\cyrerev}{\cyrl}{\cyrl}{\cyri}{\cyrp}{\cyrt}{\cyri}{\cyrk}{\cyro}-{\cyrg}{\cyri}{\cyrp}{\cyre}{\cyrr}{\cyrb}{\cyro}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro} {\cyrt}{\cyri}{\cyrp}{\cyra}}, journal = {Matemati\v{c}eskij sbornik}, pages = {261--282}, publisher = {mathdoc}, volume = {80}, number = {3}, year = {1956}, zbl = {0070.09202}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1956__80_3_a0/} }
И.Л. Кароль. К теории краевых задач для уравнения смешанного эллиптико-гиперболического типа. Matematičeskij sbornik, Tome 80 (1956) no. 3, pp. 261-282. http://geodesic.mathdoc.fr/item/MS_1956__80_3_a0/