1. Alexithymia: concept and measurement;Apfel;Psychotherapy and psychosomatics,1997
2. The twenty-item Toronto alexithymia scale-I. Item selection and cross-validation of the factor structure;Bagby;Journal of psychosomatic Research,1994
3. Are there subtypes of alexithymia?;Bagby;Personality and Individual Differences,2009
4. Alexithymia: A comparative study of three self-report measures;Bagby;Journal of Psychosomatic Research,1988
5. Bagby, R. M., Taylor, G. J., Dickens, S. E., & Parker, J. D. A. (2009). The Toronto Structured Interview for Alexithymia: Administration and Scoring Guidelines, version 2. Unpublished manual.