Fixed point theorems for generalized contractions Jochen Reinermann — 1972 Commentationes Mathematicae Universitatis Carolinae
Fixed point theorems for pseudo-contractive mappings and a counterexample for compact maps Günter Müller; Jochen Reinermann — 1977 Commentationes Mathematicae Universitatis Carolinae
Fixed point theorems for compact and nonexpansive mappings on starshaped domains (Preliminary communication) Jochen Reinermann; Volker Stallbohm — 1974 Commentationes Mathematicae Universitatis Carolinae