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From: jlz@csun7.cs.uh.edu (JingLun Zhang)
Newsgroups: comp.graphics
Subject: Re: PDES reference?
Keywords: PDES IGES
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Date: 4 Feb 89 01:31:49 GMT
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At my hand, there are documents about PDES project: 3 models (EXPRESS, IDEF1X
and NIAM) reference manuals, geometric data format in EXPRESS and IDEF1X, 
electronic data format in IDEF1X, etc. You may get them from NBS.