Jump-Land Characteristics and Muscle Strength Development in Young Athletes: A Gender Comparison of 1140 Athletes 9 to 17 Years of AgeBarber-Westin SD, Noyes FR, Galloway M (Cincinnati Sportsmedicine Research and Education Found, Ohio) Am J Sports Med 34:375–384, 2006§

[1]  F. Noyes,et al.  Jump-Land Characteristics and Muscle Strength Development in Young Athletes , 2006, The American journal of sports medicine.