1. Morgan, W. (1979) Prediction of Performance in Athletics. In: Klavora, P., Daniel, J.V. and Zander, H., Eds., Coach, Athlete, and the Sport Psychologist, Human Kinetics, Champaign, 173-186.
2. Hackfort, D. (2006) A Conceptual Framework and Fundamental Issues for Investigating the Development of Peak Performance in Sports. In: Hackfort, D., Ed., Essential Processes for Attaining Peak Performance, Meyer & Meyer, Aachen, 10-25.
3. An Examination of U.S. Olympic Sport Psychology Consultants and the Services They Provide
4. Developing and training mental toughness in sport: a systematic review and meta-analysis of observational studies and pre-test and post-test experiments
5. Sport psychology training within a clinical psychology program and a department of intercollegiate athletics.