The Internet Explorer DTD and Mozilla DTD were downloaded from
http://www.webtechs.com/html/.

The HTML Professional DTD is from Silmaril and was downloaded 
and extracted from ftp://ftp.ucc.ie/pub/html/htmlpro.zip.

The html.decl is from W3O, http://validator.w3.org/lib/

Copyright:


The Internet Explorer DTD's are written by Mark 
Buckley <mbuckley@microsoft.com>.


The htmlpro DTD is protected under the GNU Copyleft License (GPL).
On a Debian system this document may be found in 
/usr/doc/copyright/GPL .


ISO General Document is 
     (C) International Organization for Standardization 1986
     Permission to copy in any form is granted for use with
     conforming SGML systems and applications as defined in
     ISO 8879, provided this notice is included in all copies.

The modified version of that document included here is
  Credits:
    Jaap Akkerhuis <jaap@alice.att.com> discovered the ambiguity.
    Wayne Wohler <WOHLER@BLDVM1.VNET.IBM.COM> provided the original
    DTD.  Modification by Erik Naggum <erik@naggum.no>.
  Contact:
    ISBN 82-7640 assigned to Naggum Software, Box 1570 Vika, 0118
    OSLO, NORWAY.  Phone +47-295-0313.  E-mail: <books@naggum.no>.
    This DTD will be provided free of charge, electronically, by means
    of electronic mail or receiver-initiated file transfer, to those
    who have legal access to the ISO document from which this is a
    derived work.  This published material will _not_ be provided in
    paper copy, except as required by law.


The Hewlett-Packard DTDs and entities carry this copyright:

     (c) Copyright 1987-1994 Hewlett-Packard Company
    
     Permission to use, copy, and distribute this Document Type
     Definition (DTD) entity set is hereby granted, provided that the above
     copyright notice appear in all copies and that both that copyright
     notice and this permission notice appear in supporting hardcopy and
     online documentation.  All other rights reserved.
    
     The name of Hewlett-Packard Company or the Hewlett-Packard logo may
     not be used in advertising or publicity pertaining to distribution
     of this DTD without specific, written prior permission.
     Hewlett-Packard Company makes no representations about the
     suitability of this DTD for any purpose.  It is provided "as is"
     without express or implied warranty.
    
     Hewlett-Packard disclaims all warranties with regard to this DTD,
     including all implied warranties of merchantability and fitness, in
     no event shall Hewlett-Packard Company be liable for any special,
     indirect or consequential damages or any damages whatsoever
     resulting from loss of use, data or profits, whether in an action
     of contract, negligence or other tortious action, arising out of or
     in connection with the use or performance of this DTD.



The Mozilla DTDs (html-mcom.dtd and html-mcoms.dtd) are 
Copyright (c) 1996 - WebTechs - Austin, TX http://www.webtechs.com/.  
It was written by Dan Connolly <connolly@w3.org> and is maintained 
by Mark Gaither (markg@webtechs.com).

