CCL: PDB format Documented?



    Folks,
       Can someone point me to documentation in the literature
         regarding the PDB file format?  I've noticed that
         several software products have slightly different
         "PDB" output formats for small molecules.  I'm
         interested in getting more information on what the
         standard says... I'm just having trouble finding
         where that standard is documented :-)
       Pointers to HTTP sites, journal articles, or other
         places where the PDB standard is authoritatively
         described would be appreciated.  Thanks,
 ____Nicholas C. DeMello, Ph.D.________________________________________
    Online at MacTech Magazine, the Journal of Macintosh Programming
      http://www.MacTech.com/
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   Chemistry: Nick (- at -) chem.UCLA.edu       _/_/ _/  _/  _/   _/  _/_/_/
     MacTech: Online (- at -) MacTech.com      _/ _/_/  _/  _/       _/ _/
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