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Author: Wray, S. D.

• Wray, S. D.: Absolutely convergent expansions associated with a boundary-value problem with the eigenvalue parameter contained in one boundary condition. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 608-622
• Everitt, William Norrie; Wray, S. D.: A singular spectral identity and inequality involving the Dirichlet integral of an ordinary differential expression. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 589-607