Singularities of harmonic functions of three variables generated by Whittaker-Bergman operators
Tom 10 / 1961
                    
                    
                        Annales Polonici Mathematici 10 (1961), 81-100                    
                                        
                        DOI: 10.4064/ap-10-1-81-100                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            