30.
Potteiger, J. A., Lockwood, R. H., Haub, M. D., Dolezal, B. A., Almuzaini, K. S., Schroeder, J. M., & Zebas, C. J. (1999). Muscle power and fiber characteristics following 8 weeks of plyometric training. Journal of Strength & Conditioning Research, 13(3), 275–279.