Gray, Andrew, 1847-1925. A treatise on Bessel functions and their applications to physics/ by Andrew Gray and G. B. Mathews. - 2d ed. prepared by A. Gray and T. M. MacRobert. - London: Macmillan, 1922. - xiv, 327 p.: diagrs., 23 cm. Bibliography: p. 318-322. LCCN: 23001073 //r90 Subjects--Topical Terms: Bessel functions.Mathematical physics. Dewey Class. No.: 515.53 / G778t