P. Bonneau et A. Cumenge, THE CAUCHY-RIEMANN EQUATION IN SOME LUNES IN C-N, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 323(7), 1996, pp. 749-752
For some bidegrees, we solve, by using integral formulas, the partial
derivative-equation in some non-pseudoconvex domains which are the dif
ference of two strictly pseudoconvex domains and give estimates for th
e solutions.