151-200 National Technical University of Athens Athens, Greece
201-250 National and Kapodistrian University of Athens Athens, Greece
251-300 Aristotle University of Thessaloniki Thessaloniki, Greece
301-350 Athens University of Economics and Business Athens, Greece
301-350 University of Patras Patras, Greece
401-450 University of Crete Heraklion, Greece
551-600 Technical University of Crete Chania, Greece
651-670 University of Piraeus Piraeus , Greece
