Σουμπενιώτης Δ.Ν., Γεωργόπουλος Ν.Β. and Πέκκα - Οικονόμου Β. 2001. The usefulness of commercial bank portfolio behavior modelling: retrospection and prospects. SPOUDAI Journal of Economics and Business. 51, 1-2 (Jan. 2001), 22–39.