On Ordinary Differential Equations of any Even Order and the Corresponding Eigenfunction Expansions
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Publication:5825343
DOI10.2307/2372051zbMath0054.03903OpenAlexW4245101118MaRDI QIDQ5825343
Publication date: 1950
Published in: American Journal of Mathematics (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.2307/2372051
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