Falnita, Eugen and Sipos, Ciprian (2007): A multiple regression model for inflation rate in Romania in the enlarged EU. Published in: Economic integration, competition and cooperation (01. August 2007)
Sipos, Ciprian and Boleantu, Mihai (2008): Autoregressive models for analysis of foreign investment in Romania. Published in: University of Oradea, Annals of Faculty of Economics , Vol. 2, (September 2008): pp. 927-932.