1. AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR CONDITIONING ENGINEERS (1960): Heating, Ventilating and Air Conditioning Guide.Amer.Soc. Heat.Air Cond.Eng., Washington, D.C. Chapter 6. Physiological Principles, 38: 63?74.
2. BELDING, H.S. and HATCH, T.F. (1955): Index for evaluating heat stress in forms of resulting physiological strains.Heat.Piping Air Condit., 27: 129?136.
3. HOUGHTEN, F.C. and YAGLOGLOU, C.P. (1923): Determining lines of equal comfort. J.Amer.Soc.Heat.Vent.Eng., 29: 165?176.
4. LEE, D.H.K. (1958): Proprioclimates of man and domestic animals. Australia ? Unesco Symp. Canberra, 1956. Climatology and Microclimatology. Arid Zone Res. (Unesco), 10: 102?125.
5. LEE, D.H.K. and HENSCHEL, A. (1963): Evaluation of thermal environment in shelters. Techn.Rep. 8, U.S. Dept. of Health, Education and Welfare. Division of Occupational Health, Cincinnati, Ohio, p. 58.