1. Allport, Gordon W. & Odbert, Henry Sebastian (1936). Trait-Names: A Psycho-Lexical Study. Psychological Monographs. Whole No. 47/211.
2. Argyris, Chris (1991). Teaching Smart People How to Learn. Every company faces a dilemma: the smartest people find it the hardest to learn. Harvard Business Review 69(3), 99–109.
3. Aristoteles (2008). Nikomachische Ethik. 2. Aufl. Reinbek bei Hamburg.
4. Avolio, Bruce J. (2005). Leadership Development in Balance. New York, NY.
5. Babiak, Paul & Hare, Robert D. (2007). Menschenschinder oder Manager. Psychopathen bei der Arbeit. München.