Sparkes, W., Russell, M., Northeast, J., Cook, C., Bracken, R., & Kilduff, L. (2016). Relationships between match activities and peak power output and Creatine Kinase responses to professional reserve team soccer match-play. Human Movement Science, 45, pp. 96-101. doi:10.1016/j.humov.2015.11.011

Sparkes, William, M. Russell, J. Northeast, C.J Cook, Richard Bracken, and Liam Kilduff. "Relationships between Match Activities and Peak Power Output and Creatine Kinase Responses to Professional Reserve Team Soccer Match-play." Human Movement Science 45 (2016): 96-101.

Sparkes, William, et al. "Relationships between Match Activities and Peak Power Output and Creatine Kinase Responses to Professional Reserve Team Soccer Match-play." Human Movement Science 45 (2016): 96-101.