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On the variational principle for a system of ordinary differential equations - PDF (Russian)
Copyright (c) 2025 Budochkina S.A., Luu T.H.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2025 Budochkina S.A., Luu T.H.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.