ELTE University (Budapest, Hungary): Degree Courses in Russian (ten semesters, Leaving Certificate), English (four semesters, Comprehensive Examination, Rigorosum), Classical Greek (Diploma in Greek Philology), Latin (Diploma in Latin Philology)

University of Athens (UOA, Athens, Greece): Postgraduate Studies in Linguistics (Doctoral Diploma in Historical Phonology)

Freie Universität (FU, Berlin, Germany): Indo-European Studies (Summer Courses in Comparative Philology 2004-2014, Certificates of Participation)

Aristotelian University of Thessaloniki (AUTH, Thessaloniki, Greece): Professor of Speech Science and Historical Linguistics at the Italian Department (Superannuation: 2016)

Jawaharlal Nehru University (JNU, New Delhi, India): Visiting Professor at the Dimitrios Galanos Chair of Greek Studies (2015-2018, Courses in Classical Greek, Modern Greek, Latin)