Peak Sets in Pseudoconvex Domains with Isolated Degeneracies. Andrei Iordan (1984/1985) Mathematische Zeitschrift
Proper Holomorphic Images of Strictly Pseudoconvex Domains. Klas Diederich, John Eric Fornaess (1982) Mathematische Annalen
Properties of Peak Sets in Weakly Pseudoconvex Boundaries in C2. Alan V. Noell (1984) Mathematische Zeitschrift