1. Kolosov, G.: On an Application of Complex Function Theory to a Plane Problem of the Mathematical Theory of Elasticity. Ph.D. dissertation, Dorpat University (1909)
2. Stevenson, A.: Complex potentials in two-dimensional elasticity. Proc. R. Soc. Lond. 184, 218–229 (1945)
3. Poritsky, H.: Application of analytic functions to two-dimensional biharmonic analysis. Trans. Am. Math. Soc. 59, 248–279 (1946)
4. Sokolnikoff, I.: Mathematical Theory of Elasticity. McGraw-Hill, New York (1946)
5. Muskhelishvili, N.: Singular Integral Equations. Wolters-Noordhoff, Groningen (1958)