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Publication:3785342
zbMath0643.41016MaRDI QIDQ3785342
Publication date: 1987
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Classical almost periodic functions, mean periodic functions (42A75) General theory of ordinary differential operators (47E05) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)
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