Generators of perfect σ-algebras of $Z^{d}$-actions
Volume 99 / 1991
                    
                    
                        Studia Mathematica 99 (1991), 11-21                    
                                        
                        DOI: 10.4064/sm-99-1-11-21                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            