1. R. O. Wells, Jr., Differential Analysis on Complex Manifolds, Prentice-Hall, Englewood Cliffs (1973).
2. F. John, Plane Waves and Spherical Means Applied to Partial Differential Equations, Wiley-Interscience, New York (1955).
3. R. Harvey and J. Polking, ?Fundamental solutions in complex analysis. Part 1. The Cauchy-Riemann operator,? Duke Math. J.,46, No. 2, 253?300 (1979).
4. R. Harvey and J. Polking, ?Fundamental solutions in complex analysis. Part II. The induced Cauchy-Riemann operator,? Duke Math. J.,46, No. 2, 301?340 (1979).
5. N. Bourbaki, Variétés Différentielles et Analytiques. Fascicule de Résultats, Hermann, Paris (1971).