Peprnicek, Christoph, et al. “Effects of 4 Weeks of Device-Induced Normobaric Intermittent Hypoxia Hyperoxia Training on the Performance of Elite Cyclists: A Pilot Study”. Current Issues in Sport Science (CISS), vol. 9, no. 4, Sept. 2024, p. 047, https://doi.org/10.36950/2024.4ciss047.