Complex methods in non-linear analysis
Tom 11 / 1983
                    
                    
                        Banach Center Publications 11 (1983), 251-259                    
                                        
                        DOI: 10.4064/-11-1-251-259                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            