On a certain transformation of complex series
Tom 22 / 1970
                    
                    
                        Annales Polonici Mathematici 22 (1970), 277-289                    
                                        
                        DOI: 10.4064/ap-22-3-277-289                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            