1. Health guidance manual for heat disorder;Ministry of Environment,2006
2. ISO 7243. Hot environments – Estimation of the heat stress on working man, based on the WBGT-index (Wet Bulb Globe Temperature); 1989.
3. Heat balance modelling;Höppe;Experientia,1993
4. The physiological equivalent temperature – a universal index for the biometeorological assessment of the thermal environment;Höppe;Int J Biometeorology,1999
5. ISO 7933. Standard title ergonomics of the thermal environment. Analytical determination and interpretation of heat stress using calculation of the predicted heat strain; 2004.