30th October 1999. DERB and DERFFT High Q Powder Programs for PDF/Local Order Analysis Espinat et al. (1993) J. Appl. Cryst., 26, 368-383 Various fortran files for the DERB and DERFFT software for VAX are attached but are not sorted into any particular order. And as cited in: Gualtieri and Bellotto (1998) Phys. Chem. Minerals, 25, 442-452. This was obtained thanks to Bernadette Rebours at INSTITUT FRANCAIS DU PETROLE IFP 1&4, avenue de Bois Préau - 92852 RUEIL-MALMAISON cedex France, Web Site : http://www.ifp.fr This fortran code is provided as is They need a lot of improvement and "cosmetic" adaptions which is the responsibility of potential users. If you find this useful and do port, enhance, etc: it would appreciated if you can re-deposite the resulting program at the CCP14 web-site (or any other freely available web/internet site), plus annouce newer versions on the sci.techniques.xtallography newsgroup on the internet. Lachlan Cranswick (CCP14 Secretary) ==================== Lachlan M. D. Cranswick Collaborative Computational Project No 14 (CCP14) for Single Crystal and Powder Diffraction Daresbury Laboratory, Warrington, WA4 4AD U.K Tel: +44-1925-603703 Fax: +44-1925-603124 E-mail: l.cranswick@dl.ac.uk Ext: 3703 Room C14 http://www.ccp14.ac.uk