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@article{MS_1968__119_2_a2, author = {{\CYRG}.{\CYRI}. {\CYREREV}{\cyrs}{\cyrk}{\cyri}{\cyrn}}, title = {{\CYRS}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}{\cyrery} {\cyrp}{\cyrs}{\cyre}{\cyrv}{\cyrd}{\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}{\cyrishrt} {\cyrs} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrery}{\cyrm}{\cyri} {\cyrv}{\cyre}{\cyrshch}{\cyre}{\cyrs}{\cyrt}{\cyrv}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrm}{\cyri} {\cyrh}{\cyra}{\cyrr}{\cyra}{\cyrk}{\cyrt}{\cyre}{\cyrr}{\cyri}{\cyrs}{\cyrt}{\cyri}{\cyrk}{\cyra}{\cyrm}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {174--200}, publisher = {mathdoc}, volume = {119}, number = {2}, year = {1968}, zbl = {0164.40801}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1968__119_2_a2/} }
Г.И. Эскин. Системы псевдодифференциальных уравнений с простыми вещественными характеристиками. Matematičeskij sbornik, Tome 119 (1968) no. 2, pp. 174-200. http://geodesic.mathdoc.fr/item/MS_1968__119_2_a2/