The Assessment of Sultriness. Part I: A Temperature-Humidity Index Based on Human Physiology and Clothing Science, R. G. Steadman, Journal of Applied Meteorology, July 1979, Vol 18 No7, S. 861–873 doi:10.1175/1520-0450(1979)018<0861:TAOSPI>2.0.CO;2.
weather.gov
NOAA US Department of Commerce: What is the heat index? Abgerufen am 3. August 2021 (amerikanisches Englisch).
