Willmore, T. J., 1919-, Total curvature in Riemannian geometry T.J. Willmore. - Chichester: Ellis Horwood, 1982. - 166 pages ; 24 cm. - Ellis Horwood series in Mathematics and its applications . Includes index pages 159-166 ISBN: 0853122679 Subjects--Topical Terms: Geometry, Riemannian.Curvature.