Kassis, W., Vasiou, A., Govaris, C., Rietz, C., & Graf, U. (2023). Individual and social predictors of Greek early adolescents’ self-determination: A longitudinal structural equation analysis . Psychology: The Journal of the Hellenic Psychological Society, 28(2), 176–194. https://doi.org/10.12681/psy_hps.31471