1. Handbook of Mathematical Functions;Abramovitz,1972
2. Hardy spaces of the conjugate Beltrami equation;Baratchart;J. Funct. Anal.,2010
3. Transformations, Transmutations and Kernel Functions, vol. 1–2;Begehr,1992
4. Integral Operators in the Theory of Linear Partial Differential Equations;Bergman,1969
5. Theory of Pseudo-Analytic Functions;Bers,1952