Generalized Fréchet varieties
Volume 58 / 1966
                    
                    
                        Fundamenta Mathematicae 58 (1966), 31-43                    
                                        
                        DOI: 10.4064/fm-58-1-31-43                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            