On vector-valued analytic functions with constant norm
Tom 53 / 1975
                    
                    
                        Studia Mathematica 53 (1975), 29-37                    
                                        
                        DOI: 10.4064/sm-53-1-29-37                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            