Powder Indexing - specialist programs
Supercel is a specialised indexing program by Juan Rodriguez-Carvajal for tackling incommensurate cells and super/sub-cell relationships. (available within Winplotr/Fullprof)
Web: http://www-llb.cea.fr/winplotr/winplotr.htm
FTP: ftp://bali.saclay.cea.fr/pub/divers/fullprof.2k/