Di Giuseppe M., Perry J.C., Petraglia J., Janzen J., Lingiardi V. (2014). Development of a Q-sort version of the Defense Mechanism Ratings Scales (DMRS-Q) for clinical use. Journal of Clinical Psychology, 70(5), 452-465.

Di Giuseppe M., Perry J.C., Petraglia J., Janzen J., Lingiardi V. A preliminary study on validity and reliability of the Defense Mechanisms Rating Scales Q-sort version (DMRS Q-sort). 42nd International Meeting of SPR in Bern, 28 June-02 July 2011.

Di Giuseppe M., Perry J.C., Petraglia J., Janzen J., Lingiardi V. Studying changes in defensive functioning using the new computerized Defense Mechanisms Rating Scale Q-sort (DMRS-Q) in psychotherapy. 41st International meeting of SPR in Asilomar, CA, 23-27 June 2010.

Perry J.C. (1990). Defense Mechanisms Rating Scales (5th ed.). Boston: The Cambridge Hospital.

Perry J.C., & Høglend P. (1998). Convergent and discriminant validity of overall defensive functioning. Journal of Nervous and Mental Disease, 186, 529-535.

Perry J.C. (2014). Anomalies and specific functions in the clinical identification of defense mechanisms. Journal of Clinical Psychology: In Session, 70 ( 5):406-418.