Rodger, S. M., D. J. Plews, J. McQuillan, and M. W. Driller. “Evaluation of the Cyclus Cycle Ergometer and the Stages Power Meter for Measurement of Power Output in Cycling”. Journal of Science and Cycling, vol. 5, no. 3, Sept. 2016, pp. 16-22, https://jsc-journal.com/index.php/JSC/article/view/237.