1. Bales, R.F./ Slater, P.E. (1955) Role differentiation in small decision-making groups. In: Parsons, T./ Bales, R.F. (eds.): Family, socialization, and interaction processes, Free Press, New York, 259–306
2. Bar-Tal, Y. (1989) What can we learn from Fiedler’s Contingency model? In: Journal for the Theory of Social Behavior, 19 (1), 79–96
3. Bass, B.M. (1960) Leadership, psychology and organizational behavior, Harper, New York
4. Bass, B.M. (1985) Leadership: Good, better, best. In: Organizational Dynamics, 13 (Winter), 26–40
5. Bass, B.M. (1990) Bass & Stogdill’s Handbook of Leadership — Theory, research & managerial applications, 3. A., Free Press, New York