1. Akhalaia, G.: Discontinuous boundary value problem for generalized analytic vectors. Proceedings of Seminar of I. Vekua Inst. Appl. Math. 15 (1981), 67–76 (Russian).
2. Akhalaia, G.: Dirichlet type boundary value problem for nonlinear first order differential system of equations on the plane. Boundary value problems for generalized analytic functions and their applications. Tbilisi Univ. Press, Tbilisi, 1983, 3–16 (Russian).
3. Akhalaia, G., Manjavidze, G.: Boundary value problems of the theory of generalized analytic vectors for the domains with angular points. Modern problems of mathematical physics II, Tbilisi Univ. Press, Tbilisi, 1987, 15–24 (Russian).
4. Begehr, H.: Boundary value problems for analytic and generalized analytic functions. Complex analysis — methods, trends, and applications. Eds. E. Lanckau, W. Tutschke. Akademie-Verlag, Berlin, 1983, 150–165.
5. Begehr, H.: Complex analytic methods for partial differential equations. An introductory text. World Scientific, Singapore, 1994.