Eigenvalues, Embeddings and Generalised Trigonometric Functions - Lang, Jan.; Edmunds, David; SpringerLink (Online service) (Berlin, Heidelberg : Springer Berlin Heidelberg, 2011)
Keywords: Mathematics; Global analysis (Mathematics).; Functional analysis; Differential Equations; Functions, special; Mathematics; Analysis; Approximations and Expansions; Functional Analysis; Special Functions; Ordinary Differential Equations; Mathematics Education