Martin, N., Zoeller, R., Robertson, R., & Lephart, S. (1998). The comparative effects of sports massage, active recovery, and rest in promoting blood lactate clearance after supramaximal leg exercise. Journal of athletic training, 33(1), S. 30-35. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1320372/pdf/jathtrain00009-0032.pdf

Martin, N.A., R.F Zoeller, R.J Robertson, and S.M Lephart. "The Comparative Effects of Sports Massage, Active Recovery, and Rest in Promoting Blood Lactate Clearance After Supramaximal Leg Exercise." Journal of Athletic Training 33, no. 1 (1998): S. 30-35.

Martin, N.A., R.F Zoeller, R.J Robertson, and S.M Lephart. "The Comparative Effects of Sports Massage, Active Recovery, and Rest in Promoting Blood Lactate Clearance After Supramaximal Leg Exercise." Journal of Athletic Training 33.1 (1998): S. 30-35.