1. Department of Archives, Library Science and Museology, Faculty of Information Science and Informatics, Ionian University, Corfu, Greece
2. School of Social Sciences, Hellenic Open University, Patra, Greece
3. Department of Sports Organization and Management, University of Peloponnese, Sparta, Greece
4. Academic Tutor at the School of Social Scoences, Hellenic Open Uniersity, Patra, Greece
5. School of Medicine, National and Kapodistrian University of Athens, Athens, Greece