The LEDA research version can be used free of charge for academic research and teaching. However, it is not in the public domain and its use requires a research license which is distributed by the Max-Planck-Institut für Informatik in Saarbrücken. Please visit the LEDA homepage
and go to the Download section for downloading LEDA and for information
on how to obtain a research license.
Any commercial use of LEDA requires a commercial license which is
distributed by Algorithmic Solutions Software GmbH, Postfach 151101,
66041 Saarbrücken,
(fax: +49 681 842502, email: contact@algorithmic-solutions.com)