Silva, P., Santos, R., Vale, S., Soares-Miranda, L., Aires, L., & Mota, J. (2011). Physical Activity Intensities In Portuguese Youth: The Effect Of Month Of Assessment. Medicine & Science in Sports & Exercise, 43(5), 695. doi:10.1249/01.mss.0000401926.51462.5b
Silva, P., Santos, R., Vale, S., Soares-Miranda, L., Aires, L., & Mota, J. (2011). Physical Activity Intensities In Portuguese Youth: The Effect Of Month Of Assessment. Medicine & Science in Sports & Exercise, 43(5), 695. doi:10.1249/01.mss.0000401926.51462.5b