1. Abrell, C., Rowold, J., Weibler, J., & Moenninghoff, M. (2011). Evaluation of a long-term transformational leadership development program. Zeitschrift für Personalforschung, 25, 205–224.
2. Antonakis, J., Fenly, M., & Liechti, S. (2011). Can charisma be taught? Test of two interventions. Academy of Management Learning & Education, 10, 374–396.
3. Ashby, F. G., Isen, A. M., & Turken, A. U. (1999). A neuropsychological theory of positive affect and its influence on cognition. Psychological Review, 106, 529–550.
4. Ashkanasy, N. M., & Humphrey, R. H. (2011). A multi-level view of leadership and emotions: Leading with emotional labor. In A. Bryman, D. Collinson, K. Grint, B. Jackson, & M. Uhl-Bien (Eds.), Sage handbook of leadership (pp. 363–377). London: Sage.
5. Barling, J., Weber, T., & Kelloway, E. K. (1996). Effects of transformational leadership training on attitudinal and financial outcomes: A field experiment. Journal of Applied Psychology, 81, 827–832.