1. Polynomial hull of graphs;Alexander;Pacific J. Math,1991
2. Envelopes of holomorphy of certain 2-spheres in C2;Bedford;Amer. J. Math.,1983
3. On the Envelopes of holomorphy of a-spheres in C2;Bedford;J. Amer. Math. Soc.,1991
4. Pseudoconvexity of rigid domains and foliation of hulls of graphs;Chirka;Ann. Scuola Norm. Sup. Pisa Cl. Sci. (4),1995
5. C∞ regularity of solutions of the Levi equation;Citti;Ann. Ist. H. Poincaré Anal. Non Linéaire,1998