On quasi-multipliers
Volume 108 / 1994
                    
                    
                        Studia Mathematica 108 (1994), 217-245                    
                                        
                        DOI: 10.4064/sm-108-3-217-245                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            