Thanks to:

    My parents who buyed my first computer MSX

    My PhD teachers Angelo Marcello Anile and Vittorio Romano
    (Universita' di Catania, Italy) for the very helpfull conversations
    and everything they are still teaching me, and for all their 
    supporting in this project

    Richard Stallman and Karl Berry for assitance and encouragement

Siracusa, (Cassibile), 2004-09-21
--
contacts : sellier@dmi.unict.it


