Boundary properties of sets relative to function algebras
Volume 31 / 1968
                    
                    
                        Studia Mathematica 31 (1968), 253-261                    
                                        
                        DOI: 10.4064/sm-31-3-253-261                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            