Estimation of future prepaid - postpaid mobile telephony equilibrium in the OECD area. - Charisios Christodoulos; Christos Michalakelis; Dimitris Varoutas (CTTE, 2010)

Dynamic estimation of markets exhibiting a prey-predator behavior. - Christos Michalakelis; Charisios Christodoulos; Dimitris Varoutas; Thomas Sphicopoulos (Expert Syst. Appl., 2012)

On the Efficiency of Grey Modeling in Early-Stage Technological Diffusion Forecasting. - Charisios Christodoulos; Christos Michalakelis; Thomas Sphicopoulos (Int. J. Technol. Diffusion, 2015)

Μοντέλα και μεθοδολογίες για πρόβλεψη και εξέλιξη ζήτησης και ανταγωνισμού τηλεπικοινωνιακών αγορών - Charisios Christodoulos (2015)