Adolescent Pornographic Internet Site Use: A Multivariate Regression Analysis of the Predictive Factors of Use and Psychosocial Implications. - Artemis Tsitsika; Elena Critselis; Georgios Kormas; Eleftheria Konstantoulaki; Andreas Constantopoulos; Dimitrios Kafetzis (Cyberpsychology Behav. Soc. Netw., 2009)