1. Über das Restglied asymptotischer Entwicklungen von Laplaceintegralen fürs → + ∞
2. Numerical determination of elastostatic stresses in a plane sheet with holes using integral equations (in Danish), Report No. 3, 10 + 220 pp., 1970, Laboratory of Applied Mathematical Physics, The Technical University of Denmark, DK-2800 Lyngby, Denmark.
3. Résolution graphomécanique des problèmes généraux de l'élastieité plane, Bull. Centre Etudes Rech. Essais Sci. Construe. Genie Civil, Liège IV 3, pp. 1–183 (1949).
4. Mathematical Theory of Elasticity, 2nd ed., New York 1956, McGraw-Hill Book Comp., Inc.
5. and , Theory of Elasticity, 2nd ed., New York 1951, McGraw-Hill Book Comp., Inc.