Neff, K. D. (2003). The development and validation of a scale to measure self-compassion. Self and Identity, 2(3), 223-250.
Gilbert, P., Baldwin, M. W., Irons, C., Baccus, J. R., & Palmer, M. (2006). Self-criticism and self-warmth: An imagery study exploring their relation to depression. Journal of Cognitive Psychotherapy, 20(2), 183-200.
Whelton, W. J., & Greenberg, L. S. (2005). Emotion in self-criticism. Personality and Individual Differences, 38(7), 1583-1595.