Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1962__99_3_a2, author = {{\CYRI}.{\CYRD}. {\CYRCH}{\cyre}{\cyrr}{\cyrk}{\cyra}{\cyrs}{\cyro}{\cyrv}}, title = {{\CYRP}{\cyrr}{\cyre}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyro}{\cyrv}{\cyra}{\cyrn}{\cyri}{\cyre} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrb}{\cyro}{\cyrl}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyru}{\cyrr}{\cyra}{\cyrv}{\cyrn}{\cyre}{\cyrn}{\cyri}{\cyrishrt}}, journal = {Matemati\v{c}eskij sbornik}, pages = {297--318}, publisher = {mathdoc}, volume = {99}, number = {3}, year = {1962}, zbl = {0115.31003}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1962__99_3_a2/} }
И.Д. Черкасов. Преобразование параболических уравнений. Matematičeskij sbornik, Tome 99 (1962) no. 3, pp. 297-318. http://geodesic.mathdoc.fr/item/MS_1962__99_3_a2/