Smith, R. H., Turner, T. J., Garonzik, R., Leach, C. W., Vuch-Druskat, V. & Weston, С. M. 1996. «Envy and Schadenfreude*. Personality and Social Psychology Bulletin, 22:158-168, Brigham, N. L., Kelso, K. A., Jackson, M. A. & Smith, R. H. 1997. «The roles of invidious comparison and deservingness in sympathy and Schadenfreude». Basic and Applied Social Psychology, 19: 363-380.
