Shanley, E., Rauh, M. J., Michener, L. A., & Ellenbecker, T. S. (2011). Incidence of injuries in high school softball and baseball players. Journal of athletic training, 46(6), S. 648-654. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418943/

Shanley, Ellen, Mitchell J. Rauh, Lori A. Michener, and Todd S. Ellenbecker. "Incidence of Injuries in High School Softball and Baseball Players." Journal of Athletic Training 46, no. 6 (2011): S. 648-654.

Shanley, Ellen, Mitchell J. Rauh, Lori A. Michener, and Todd S. Ellenbecker. "Incidence of Injuries in High School Softball and Baseball Players." Journal of Athletic Training 46.6 (2011): S. 648-654.