On addition of two distinct sets of integers
Tom 75 / 1996
                    
                    
                        Acta Arithmetica 75 (1996), 191-194                    
                                        
                        DOI: 10.4064/aa-75-2-191-194                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            