On the structure of fixed point sets of pseudo-contractive mappings Rainald Schöneberg — 1976 Commentationes Mathematicae Universitatis Carolinae
Some fixed point theorems for mappings satisfying Frum-Ketkov conditions Rainald Schöneberg — 1976 Commentationes Mathematicae Universitatis Carolinae
Errata to: “Some fixed point theorems for mappings satisfying Frum-Ketkov conditions” [Comment. Math. Univ. Carolinae 17 (1976), no. 2, 399-411] Rainald Schöneberg — 1976 Commentationes Mathematicae Universitatis Carolinae
On the structure of fixed point sets of pseudo-contractive mappings. II. Rainald Schöneberg — 1977 Commentationes Mathematicae Universitatis Carolinae