The Ramsey sets and related sigma algebras and ideals
Volume 136 / 1990
                    
                    
                        Fundamenta Mathematicae 136 (1990), 179-185                    
                                        
                        DOI: 10.4064/fm-136-3-179-185                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            