IPCM reference!



Hi everyone,
       Can any one tell me what is reference for the IPCM model? Thanks.
                                                              Pradipta
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                *   Dr. Pradipta Bandyopadhyay          *
                *   Department of Chemistry             *
                *   Iowa State Unievrsity               *
                *   Ames, IA 50011                      *
                *   e-mail: pradipta.,at,.si.fi.ameslab.gov  *
                *   URL: http://www.msg.ameslab.gov/    *
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