The National Archive of PhD Theses provides access to the PhD theses from all Higher Education Institutions (HEIs) in Greece as well as PhD theses awarded to Greek scholars by foreign HEIs certified by the Hellenic NARIC (Δ.Ο.Α.Τ.Α.Π.).The National Documentation Centre (EKT) is the organization responsible, by law, for the collection, development and maintenance of the National Archive of PhD Theses. Today, it contains more than 28.000 PhD Theses, available to the end-users for searching or browsing.