1. U.S. Department of Health, Education and Welfare. NIOSH. Criteria for a recommended standard Occupational exposure to carbon dioxide (No. 76-197). Cincinnati, OH, USA: National Institute for Occupational Safety and Health (NIOSH); 1976.
2. Lovell J, Kluger J. Lost moon: the perilous voyage of Apollo 13. Boston, MA, USA: Houghton Mifflin Press; 1994.
3. Glatte HA, Motsay GJ, Welch BE. Carbon dioxide tolerance studies (Technical Report No. SAM-TR-67-77). Brooks Air Force Base, TX, USA: U.S. Air Force, Aerospace Medicine Division (AFSC), USAF School of Aerospace Medicine; 1967.
4. Rose AM. Human information processing: an assessment and research battery (Technical Report No. 45). Ann Arbor, MI, USA: Human Performance Center, Department of Psychology, University of Michigan; 1974.
5. Schaefer ICE. The effects of CO, and electrolyte shifts on the central nervous system. In: Schade JP, McMehemy WM, editors. Selective vulnerability of the brain in hypoxemia. Oxford, UK: Blackwell Scientific; 1963.