1. Collins, D, Doherty, M, and Talbot, S. Performance enhancement in motocross: A case study of the sport science team in action.;Sport Psychol,1993
2. Jacobs, PL and Olvey, SE. Metabolic and heart rate responses to open-wheel automobile road racing: a single-subject study.;J Strength Cond Res,2000
3. Lehmann, Von M, Huber, G, Schaub, F, and Keul, J. Zur Bedeutung der Katecholaminausscheidung zur Beurteilung der korperlich-konzentrativen Beanspruchung beim Motorrad-Gelandesport. (The significance of the catecholamine excretion for the evaluation of the physical and emotional stress in motocross drivers).;Deutsche Zeitschrift fur Sportmedizin (in German),1982
4. Heart rate, metabolic and hormonal responses to maximal psycho-emotional and physical stress in motor car racing drivers.;Schwaberger;Int Occup Environ Health,1987