On the period of the continued fraction for values of the square root of power sums
Tom 123 / 2006
                    
                    
                        Acta Arithmetica 123 (2006), 297-312                    
                                        
                        MSC: 11J70, 11J25.                    
                                        
                        DOI: 10.4064/aa123-4-1                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            