Both are based on SGML and they are hypertext systems. I look
out DTD of HyTime and obviously they are not same thing.
* <a href="ftp://ftp.ifi.uio.no/pub/SIGhyper/arch-form.catalog">DTD</a>
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// Petri Heinila // email: Petri....@lut.fi //
// // mail: Ainonkatu 2A //
// // 53100 Lappeenranta //
// // Finland, Europe //
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