On ideals consisting of joint topological divisors of zero
Volume 48 / 1973
                    
                    
                        Studia Mathematica 48 (1973), 83-88                    
                                        
                        DOI: 10.4064/sm-48-1-83-88                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            