Smith, D., King, R., Duckworth, L., Sutton, L., Preston, T., O’Hara, J., & Jones, B. (2018). Energy expenditure of rugby players during a 14-day in-season period, measured using doubly labelled water. European Journal of Applied Physiology. https://doi.org/10.1007/s00421-018-3804-4 (Original work published 2018)