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  Copyright (c) 2000, Juan Jose Garcia Ripoll
  Copyright (c) 1990, 1991, 1993 Giuseppe Attardi
  Copyright (c) 1984 Taiichi Yuasa and Masami Hagiya
	      All Rights Reserved
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Summary:

  Permission is granted to use, copy, modify this program,
  EXCEPT that the copyright notice must be reproduced on copies, and
  credit should be given to the authors where it is due.
  WE MAKE NO WARRANTY AND ACCEPT NO LIABILITY FOR THIS PROGRAM.


In detail:

  1. Permission to use, copy, modify this software and its documentation
     for any purpose is hereby granted without fee, provided that
     - the above copyright notice appears in all copies,
     - both that copyright notice and this permission notice appears in
       supporting documentation, and that
     - you cause modified files to carry prominent notices stating that
       you changed the files and the date of any change.

  2. Please notify us if you are going to sell this software or its
     documentation for profit.

  3. WE DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
     WE 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
     SOFTWARE.


Additionally:

  ECLS is free software; you can redistribute it and/or modify it
  under the terms of the GNU Library General Public License as published
  by the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version; see file 'Copying'.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Library General Public License for more details.

  You should have received a copy of the GNU Library General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Address:

  Juan Jose Garcia Ripoll
  Univ. de Castilla-La Mancha
  E.T.S.I. Industriales
  Departamento de Matematicas
  c/Camilo Jose Cela, 3
  Ciudad Real, E-13071
  Spain


Address for reporting bugs, comments, suggestions:

  jjgarcia@ind-cr.uclm.es