Bressel, E., Yonker, J. C., Kras, J., & Heath, E. M. (2007). Comparison of static and dynamic balance in female collegiate soccer, basketball, and gymnastics athletes. Journal of athletic training, 42(1), S. 42-46. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1896078/

Bressel, Eadric, Joshua C. Yonker, John Kras, and Edward M. Heath. "Comparison of Static and Dynamic Balance in Female Collegiate Soccer, Basketball, and Gymnastics Athletes." Journal of Athletic Training 42, no. 1 (2007): S. 42-46.

Bressel, Eadric, Joshua C. Yonker, John Kras, and Edward M. Heath. "Comparison of Static and Dynamic Balance in Female Collegiate Soccer, Basketball, and Gymnastics Athletes." Journal of Athletic Training 42.1 (2007): S. 42-46.