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About Some Kind of Differential-Operator Equations with Variable Coefficients - PDF (Russian)
Copyright (c) 2015 Mishin S.N.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2015 Mishin S.N.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.