Agarwal, Ravi P. Boundary value problems for higher order differential equations / Ravi P. Agarwal. - Singapore ; Philadelphia, Pa. : World Scientific, 1986. - x, 307 p. ; 23 cm. Includes bibliographies and index. ISBN: 9971501082 Subjects--Topical Terms: Boundary value problems. Dewey Class. No.: 515.3/5