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@article{MS_1966__111_3_a3, author = {{\CYRA}.{\CYRI}. {\CYRE}{\cyrg}{\cyro}{\cyrr}{\cyro}{\cyrv}}, title = {{\CYRN}{\cyre}{\cyro}{\cyrb}{\cyrh}{\cyro}{\cyrd}{\cyri}{\cyrm}{\cyrery}{\cyre} {\cyru}{\cyrs}{\cyrl}{\cyro}{\cyrv}{\cyri}{\cyrya} {\cyro}{\cyrp}{\cyrt}{\cyri}{\cyrm}{\cyra}{\cyrl}{\cyrsftsn}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrd}{\cyrl}{\cyrya} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm} {\cyrs} {\cyrr}{\cyra}{\cyrs}{\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrn}{\cyrn}{\cyrery}{\cyrm}{\cyri} {\cyrp}{\cyra}{\cyrr}{\cyra}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyra}{\cyrm}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {371--421}, publisher = {mathdoc}, volume = {111}, number = {3}, year = {1966}, zbl = {0163.11305}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1966__111_3_a3/} }
А.И. Егоров. Необходимые условия оптимальности для систем с распределенными параметрами. Matematičeskij sbornik, Tome 111 (1966) no. 3, pp. 371-421. http://geodesic.mathdoc.fr/item/MS_1966__111_3_a3/