Chen's double sieve, Goldbach's conjecture and the twin prime problem, 2
Tom 131 / 2008
                    
                    
                        Acta Arithmetica 131 (2008), 367-387                    
                                        
                        MSC: 11P32, 11N35, 11N05.                    
                                        
                        DOI: 10.4064/aa131-4-5                    
                                    
                                                                
                             
             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                             
                                                         
                                                            