1. Threshold Limit Values for chemical substances and physical agents and biological exposure indices;ACGIH,1990
2. Minimum ventilation for acceptable indoor air quality;ASHRAE Standard 62,1989
3. Sick building syndrome;Burge,1993
4. Guidelines for ventilation requirements in buildings;CEC;European concerted action - indoor air quality & its impact on man - Report No 11,1992
5. Introduction of the Olf and the decipol units to quantify air pollution perceived by humans indoors and outdoors;Fanger;Energy and Buildings,1988