Karademas, E., and C. Thomadakis. “Dispositional Optimism in Cardiac Patients and Their Spouses: Dyadic Relations to Well-Being and Positive Affect”. Psychology: The Journal of the Hellenic Psychological Society, vol. 25, no. 1, Nov. 2020, pp. 151-63, doi:10.12681/psy_hps.25364.