A Levi Problem on Two-Dimensional Complex Manifolds. Klas Diederich, Takeo Ohsawa (1982) Mathematische Annalen
A note on a paper by Andreotti and Hill concerning the Hans Lewy problem Olle Stormark (1975) Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
A remark on runge approximation of meromorphic functions Klaus Hulek (1979) Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
A smooth Pseudoconvex domain without pseudoconvex exhaustion. Klas Diederich, John Erik Fornaess (1982) Manuscripta mathematica