Technical efficiency and economies of scale in state owned enterprises: The Hellenic telecommunications organisation. - Antreas D. Athanassopoulos; Dimitris Giokas (Eur. J. Oper. Res., 1998)

The Use of Data Envelopment Analysis in Banking Institutions: Evidence from the Commercial Bank of Greece. - Antreas D. Athanassopoulos; Dimitris Giokas (Interfaces, 2000)