1. IV. On the elastic equilibrium of circular cylinders under certain practical systems of load
2. Love , A.E.H. 1920.Treatise on the Mathematical Theory of Elasticity, 278–278. Camb. Univ. Press.
3. Watson , G.N. 1922.Theory of Bessel Functions, 79–79. Camb. Univ. Press.
4. Titchmarsh , E.C. 1937.Introduction to the Theory of Fourier Integrals, 5–5. Oxford Univ. Press.
5. See, for instance,B.A. Mathematical TablesCamb. Univ. Press i 34 39