1. Burns, D. D., and Nolen-Hoeksema, S. (1991). Coping styles, homework compliance and the effectiveness of cognitive-behavioral therapy. Journal of Consulting and Clinical Psychology 59 (2), 305–311.
2. Burns, D. D., & Auerbach, A. H. (1992). Do self-help assignments enhance recovery from depression? Psychiatric Annals 22 (9), 464–469.