On the roots of certain sequences of congruences
Tom 67 / 1994
                    
                    
                        Acta Arithmetica 67 (1994), 97-104                    
                                        
                        DOI: 10.4064/aa-67-1-97-104                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            