virtual documents

"Ron D. Appel" <appel@cih.hcuge.ch>
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Date: Wed, 7 Jul 1993 17:43:30 +0200
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From: "Ron D. Appel" <appel@cih.hcuge.ch>
Message-id: <896*/S=appel/OU=cih/O=hcuge/PRMD=switch/ADMD=arcom/C=ch/@MHS>
To: WWW TALK <www-talk@nxoc01.cern.ch>
Subject: virtual documents
Status: RO
In several papers, I have read about virtual and real documents.
How does one build (and send back to the client) a VIRTUAL DOCUMENT, for 
example as a result of an index search?

Thank you.

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