Kozina Z, Prokopenko I, Cretu M, Chaika O, Ryepko O, Osiptsov A, Razumenko T, Kudryavtsev M, Polianskyi A. Individual chronobiological regularity in track-and-field sprint. Pedagogics, psychology, medical-biological problems of physical training and sports. 2018;22(3):149-55. https://doi.org/10.15561/18189172.2018.0306