Initial-value methods for computing eigenvalues of two point boundary value problem
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Ravi P. Agarwal, Y. M. Chow (1987)
Archivum Mathematicum
Belmehdi, S., Chehab, J.-P. (2004)
Abstract and Applied Analysis
A. Dijksma, H.S.V. de Snoo (1973)
Manuscripta mathematica
Frédéric Pham (1985/1986)
Séminaire Bourbaki
S. Graffi, E. Harrell (1982)
Annales de l'I.H.P. Physique théorique
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