Front crawl stroke in swimming: Phase durations and self-similarity.

Verrelli CM, Romagnoli C, Jackson RR, Ferretti I, Annino G, Bonaiuto V. 

Journal of Biomechanics (J Biomech.). 2021 Dec;118:110267. Journal Article.

https://doi.org/10.1016/j.jbiomech.2021.110267