GilbertB., JamisonS.: Winning Ugly. Mental Warfare in Tennis—Lessons from a Master.New York, Simon & Schuster, 1993
2.
HackfortD.: Emotion in sports: A functional analysis out of the action theory perspective, in FuF.H., NgM-L (eds): Sports Psychology: Perspectives and Practices Toward the 21st Century.Hong Kong, Department of Physical Education, Hong Kong Baptist University, 1995, pp 27–34
3.
HackfortD.: Emotion in sports: An action theoretical analysis, in SpielbergerC.D., SarasonJ.G., KulcsarZ. (eds): Stress and Emotion. Vol 14. New York, Hemisphere, 1991, pp 65–73
4.
HackfortD.: Theorie und Analyse sportbezogener Ängstlichkeit.Schorndorf, Hofmann, 1987
5.
HackfortD., SchlattmannA.: Functions of emotion presentation in sport, in HackfortD. (ed): Research on Emotions in Sport.Köln, Strauss, 1991, pp 95–100
6.
SchlattmannA., HackfortD.: Attributions of functional meanings of “positive” emotions in acting in sport, in HackfortD. (ed): Research on Emotions in Sport.Köln, Strauss, 1991, pp 1–19
