Georgantopoulos, G. ., Konstantakopoulos, G. ., Michopoulos, I. ., Dikeos, D. ., & Gonidakis, F. . (1969). The relationship between metacognitive beliefs and symptoms in eating disorders. Psychiatrike = Psychiatriki, 31(3), 225-235. https://doi.org/10.22365/jpsych.2020.313.225 (Original work published 1969)

Konstantakopoulos, G. ., Georgantopoulos, G. ., Gonidakis, F. ., Michopoulos, I. ., Stefanatou, P. ., & David, A. . (2020). Development and validation of the schedule for the assessment of insight in eating disorders (SAI-ED). Psychiatry Research, 292, 113308. https://doi.org/10.1016/j.psychres.2020.113308

Gonidakis, F. ., Poulopoulou, C. ., Michopoulos, I. ., & Varsou, E. . (2021). Validation of the Greek ORTO-15 questionnaire for the assessment of orthorexia nervosa and its relation to eating disorders symptomatology. Eating and Weight Disorders : EWD. https://doi.org/10.1007/s40519-020-01080-6 (Original work published 2021)