Arampatzis, A.,Bruggemann, G. P.,Metzler, V.(1999).The effect of speed on leg stiffness and joint kinetics in human running.Journal of Biomechanics.32,1349-1353.
Arampatzis, A.,Schade, F.,Walsh, M.,Bruggemann, G. P.(2001).Influence of leg stiffness and its effect on myodynamic jumping performance.Journal of Electromyography and Kinesiology.11,355-364.
Cavagna, G. A.,Heglund, N. C.,Taylor, C. R.(1977).Mechanical work in terrestrial locomotion: Two basic mechanisms for minimizing energy expenditure.American Journal of Physiology.437,287-304.
Clark, R. A.(2009).The effect of training status on inter-limb joint stiffness regulation during repeated maximal sprints.Journal of Science and Medicine in Sport.12(3),406-410.