Bagby, R. M., Rogers, R., Buis, T., Nicholson, R. A., Cameron, S. L., Rector, N. A., Schuller, D. R., & Seeman, M. V. (1997). Detecting feigned depression and schizophrenia on the MMPI-2. Journal of Personality Assessment, 68(3), 650–664. Lawrence Erlbaum Associates, US, http://www.erlbaum.com