Berry, D. T. R., Adams, J. J., Clark, C. D., Thacker, S. R., Burger, T. L., Wetter, M. W., Baer, R. A., & Borden, J. W. (1996). Detection of a cry for help on the MMPI-2: An analog investigation. Journal of Personality Assessment, 67(1), 26–36. Lawrence Erlbaum Associates, US,  http://www.erlbaum.com