Giannone, F., Guarnaccia, C., Gullo, S., Di Blasi, M., Giordano, C., Lo Coco, G., & Burlingame, G. (2020). Italian adaptation of the Group Questionnaire: validity and factorial structure. Research in Psychotherapy: Psychopathology, Process and Outcome, 23(2). https://doi.org/10.4081/ripppo.2020.443