1. The theory of shells has been treated in much detail in the following books: W. Flügge: Statik und Dynamik der Schalen, 2nd ed., Berlin 1957
2. S. Timoshenko, S. Woinowsky-Krieger: Theory of Plates and Shells, 2nd ed., New York 1959, pp. 429-568
3. K. Girkmann: Flächentragwerke, 5th ed., Wien 1959, pp. 352-582
4. R. L’Hermite: Résistance des Matériaux, vol. 1: Théorie de l’Elasticité et des Structures Elastiques, Paris 1954, pp. 616-831
5. V. Z. Vlasov: General Theory of Shells (in Russian), Moscow 1949, German translation: Allgemeine Schalentheorie und ihre Anwendung in der Technik, by A. Kromm, Berlin 1958