Automatic ab initio indexing computer codes

A variety of first principles indexing methods has been implemented in many different computer programs with various modifications. For example, a total of eight different indexing routines are combined into a single suite 

Gruber, A unified algorithm for determining the reduced (Niggli) cell, Acta Cryst. A32, 297 (1976). 

LEPAGE - an MS-DOS program for the determination of the metrical symmetry of a translation lattice, J. Appl. Cryst. 21, 578 (1988). 

Available at http //www.ccpl4.ac.uk/tutorial/lmgp/chekcell lepage.html 

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