1. Hallowell, M.R.: Worker fatigue. Prof. Saf. 55(12), 18 (2010)
2. Belenky, G. et al.: Fatigue in the workplace. In: Sleep Deprivation and Disease, pp. 243–268. Springer, New York (2014)
3. Friedl, K.E.: Predicting human limits-the special relationship between physiology research and the army mission. In: Friedl, K.E., Santee, W.R. (eds.) Military Quantitative Physiology: Problems and Concepts in Military Operational Medicine: Problems and Concepts in Military Operational Medicine, p. 1–38 (2012)
4. Borg, G., Hassmén, P., Lagerström, M.: Perceived exertion related to heart rate and blood lactate during arm and leg exercise. Eur. J. Appl. Physiol. 56(6), 679–685 (1987)
5. Impellizzeri, F.M., Rampinini, E., Marcora, S.M.: Physiological assessment of aerobic training in soccer. J. Sports Sci. 23(6), 583–592 (2005)