Fixed points and proximate fixed points
Volume 63 / 1968
                    
                    
                        Fundamenta Mathematicae 63 (1968), 321-326                    
                                        
                        DOI: 10.4064/fm-63-3-321-326                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            