1. G. Akhalaia, G. Giorgadze, V. Jikia, N. Kaldani, G. Makatsaria, N. Manjavidze, Elliptic systems on Riemann surface. Lect. Notes TICMI 13, 1–167 (2012)
2. G. Akhalaia, Discontinuous boundary value problem for generalized analytic vectors. Proc. Seminar I. Vekua Inst. Appl. Math. 15, 67–86 (1981)
3. B. Bojarski, Theory of generalized analytic vectors. Ann. Polon. Math. 17, 281–320 (1966)
4. I. Vekua, Generalized Analytic Functions (Pergamon, Oxford, 1962)
5. G. Manjavidze, G. Akhalaia, Boundary value problems of the theory of generalized analytic vectors, in Complex Methods for Partial Differential Equations, ed. by H. Begehr, O. Celebi, W. Tutschke (Kluwer Academic Publishers, Dordrecht, 1999), pp. 57–97