A further refinement of Mordell's bound on exponential sums
Volume 116 / 2005
                    
                    
                        Acta Arithmetica 116 (2005), 35-41                    
                                        
                        MSC: 11L07, 11L03.                    
                                        
                        DOI: 10.4064/aa116-1-4                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            