written by
Xiangyun Qiu
email: xiangyun@pa.msu.edu
Simon Billinge
email: billinge@pa.msu.edu
Department of Physics and Astronomy,
Michigan State University,
East Lansing,
Michigan, 48824-2320, USA
Document created: 23 April 2004
Xiangyun Qiu
2004-04-23