The classification of scientific disciplines used in the National Archive of Ph.D. Theses (NA.Ph.D.). National Documentation Centre (EKT), is, by law, the competent authority for the development and maintenance of the National Archive of Ph.D. Theses (NA.Ph.D.), instituted in 1985 and operated by EKT since then. NA.Ph.D. collects, in digital form, doctoral dissertations awarded by Higher Education Institutions (HEIs) in Greece as well as Ph.D. Theses awarded to Greek scholars by foreign HEIs and certified by the Hellenic N.A.R.I.C.
