@article{CMUC_1976__17_2_a16, author = {Sch\"oneberg, Rainald}, title = {Some fixed point theorems for mappings satisfying {Frum-Ketkov} conditions}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {399--411}, publisher = {mathdoc}, volume = {17}, number = {2}, year = {1976}, mrnumber = {0410488}, zbl = {0336.47031}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1976__17_2_a16/} }