Kyriazos, T., M. Galanakis, E. Karakasidou, and A. Stalikas. “Modeling the Protective Effects of Positive Emotions Against Depression During Early COVID-19 Quarantine, With a Structural Equation Model (SEM)”. Psychology: The Journal of the Hellenic Psychological Society, vol. 26, no. 3, Dec. 2021, pp. 1-20, doi:10.12681/psy_hps.28853.