Subgroups and supergroups of the crystallographic point groups
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2006). 
                                         
                                            Vol. A,
                                            
                                                            
                                                                Section 10.1.3,
                                                                    
                                                            
                                                                pp. 795-796
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000520 ]
                        
                            
                            
                            
                            
                    
                        
                            Introduction and definitions
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2006). 
                                         
                                            Vol. A,
                                            
                                                            
                                                                Section 10.1.1,
                                                                    
                                                            
                                                                pp. 762-762
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000520 ]
                        
                            
                            
                            
                            
                    
                        
                            Twinning of crystals
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                        ch. 3.3,
                                                            
                                                            
                                                                pp. 413-487
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        
                            
                            
                            
                            
                    
                        
                            Pseudo-merohedry and ferroelasticity
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.9.3,
                                                                    
                                                            
                                                                pp. 450-450
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        
                            
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                            Displacement and fault vectors of twin boundaries
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.10.4,
                                                                    
                                                            
                                                                pp. 456-459
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        State, Vol. IV.   Crystal Structures of Minerals, p. 302. London: Bell & Sons. Google Scholar 
 
        
Klapper, 
H.  (1987).   X-ray topography of twinned crystals  . In   Progress in Crystal Growth and Characterization, Vol. 14, edited by P ...
                            
                                
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                                    results from section 3.3.10 in volume D]
                            
                            
                            
                            
                    
                        
                            Notes on the definition of twinning
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.2.4,
                                                                    
                                                            
                                                                pp. 417-418
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        Bildung von Drehmehrlingen mit pentagonaler Pseudosymmetrie beim Erstarrungsvorgang des Fe  4  Al  13  . J. Alloy. Compd.     198, 91–100. Google Scholar 
 
        
Klapper, 
H.,  Hahn, Th.  &  Chung, S. J.  (1987).   Optical, pyroelectric and X-ray ...
                            
                                
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                            Variety of twinning in gibbsite, Al(OH)3
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.6.11,
                                                                    
                                                            
                                                                pp. 433-433
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        
                            
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                            General survey
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.11.4.1,
                                                                    
                                                            
                                                                pp. 471-472
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        
                            
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                            Morphological classification
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.3.1,
                                                                    
                                                            
                                                                pp. 419-419
                                                                        
                                            
                                        
                        
                        
[ doi:10.1107/97809553602060000917 ]
                        
                            
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                            Composite symmetry
                        
                        
                            Hahn, Th. and 
Klapper, H., 
                        
                        
                                        
                                            International Tables for Crystallography
                                         (2013). 
                                         
                                            Vol. D,
                                            
                                                            
                                                                Section 3.3.4.1,
                                                                    
                                                            
                                                                pp. 419-420
                                                                        
                                            
                                        
                        
                        
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