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Lenk, H (1979). Social Philosophy of Athletics: A Pluralistic and Practice-Oriented Philosophical Analysis of Top Level Amateur Sport. Stipes Pub Llc.

McClelland, D. C., Atkinson, J. W., Clark, R. A., & Lowell, E. L. (1958). A scoring manual for the achievement motive; R. W. Heyns, J. Veroff, & J. W. Atkinson, A scoring manual for the affiliation motive; J. Veroff, A scoring manual for the power motive. Respectively, Chapters 12, 13 and 14 in J. W. Atkinson (Ed.), Motives in Fantasy, Action and Society. New York: Van Nostrand.

Raven, J. (2001). The McClelland/McBer Competency Models. Chapter 15 in J. Raven & J. Stephenson (Eds.), Competence in the Learning Society. New York: Peter Lang.

Breidebach, G. (2012). Bildungsbenachteiligung. Warum die einen nicht können und die anderen nicht wollen. Hamburg: Dr Kovac Verlag.