The TNT refinement package
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                        ch. 18.7,
                                                            
                                                            
                                                                pp. 520-524
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        molecules by the fast Fourier transform. Acta Cryst.   A  33, 486–492. Google Scholar 
 
        
Tronrud, 
D. 
E.  (1992).   Conjugate-direction minimization: an improved method for the refinement of macromolecules. Acta Cryst.   A  48, 912–916. Google ...
                            
                            
                            
                            
                    
                        
                            Randy Read's maximum-likelihood function
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.6.2,
                                                                    
                                                            
                                                                pp. 523-523
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        
                            
                                     [
more
                                    results from section 18.7.6 in volume F]
                            
                            
                            
                            
                    
                        
                            Scope and function of the package
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.1,
                                                                    
                                                            
                                                                pp. 520-520
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        is not well suited. Second, the errors in an initial model constructed with only 3.5 Å data are usually of such a magnitude and quality that the function minimizer in   TNT   cannot correct them. 
 
 
 
    References   
        
Tronrud, 
D. 
E.,  Ten Eyck ...
                            
                            
                            
                            
                    
                        
                            The ability of a single package to perform both individual atom and rigid-body refinement (1982)
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.5.2,
                                                                    
                                                            
                                                                pp. 522-522
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        
                            
                                     [
more
                                    results from section 18.7.5 in volume F]
                            
                            
                            
                            
                    
                        
                            The source code should not require customization for each project
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.3.3,
                                                                    
                                                            
                                                                pp. 521-522
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        
                            
                                     [
more
                                    results from section 18.7.3 in volume F]
                            
                            
                            
                            
                    
                        
                            Current structure of the package
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.4,
                                                                    
                                                            
                                                                pp. 522-522
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        
                            
                            
                            
                            
                    
                        
                            Historical context
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.2,
                                                                    
                                                            
                                                                pp. 520-520
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]
                        
                            
                            
                            
                            
                    
                        
                            Current status of TNT
                        
                        
                            Tronrud, D. E. and 
Ten Eyck, L. F., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2012). 
                                         
                                            Vol. F,
                                            
                                                            
                                                                Section 18.7.7,
                                                                    
                                                            
                                                                pp. 523-523
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000861 ]