1. P. Ebenfelt, Singularities encountered by the analytic continuation of solutions to Dirichlet’s problem, Complex Variables Theory Appl. 20 (1992), 75–92.
2. P. Ebenfelt, D. Khavinson and H.S. Shapiro, Analytic continuation of Jacobi polynomial expansions, Indag. Math. 8 (1997), 19–31.
3. M.N. Ferrers, On the potentials of ellipsoids and ellipsoidal shells, Quarterly J. Pure and Applied Math. 14 (1877), 1–22.
4. P. Gorkin and J. Smith, Dirichlet: his life, his principle, and his problem, Math. Magazine, (to appear).
5. D. Khavinson, Holomorphic partial differential equations and classical potential theory. Universidad de La Laguna, Departamento de Análisis Matemático, La Laguna, 1996. ii+123 pp. ISBN: 84-600-9323-9