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@article{MZM_2020_107_4_a11, author = {A. A. Vladimirov}, title = {Variational {Principles} for {Self-Adjoint} {Hamiltonian} {Systems}}, journal = {Matemati\v{c}eskie zametki}, pages = {633--636}, publisher = {mathdoc}, volume = {107}, number = {4}, year = {2020}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2020_107_4_a11/} }
A. A. Vladimirov. Variational Principles for Self-Adjoint Hamiltonian Systems. Matematičeskie zametki, Tome 107 (2020) no. 4, pp. 633-636. http://geodesic.mathdoc.fr/item/MZM_2020_107_4_a11/