Professor of Ecclesiatical Law. Universidad de Cantabria

PhD. Prof. University Ovidius of Constanta, Romania

University of St. Thomas School of Law

Professor of Canon Law, The Catholic University of America

Profesor Ordinario de Derecho Procesal, Pontificia Università Lateranense

Assoc. Prof., Ovidius University of Constanta, Romania

Faculty of Law, University of Zagreb, Chair of Roman Law

Université catholique de Louvain

University of Opole

The Pontifical University of John Paul II in Krakow, Poland