1. American Society for Testing and Materials. Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution (ASTM E 741-00). Author: West Conshohocken, PA, 2000.
2. American Society for Testing and Materials. Standard Guide for Using Indoor Carbon Dioxide Concentrations to Evaluate Indoor Air Quality and Ventilation (ASTM D 6245-98). Author: West Conshohocken, PA, 1998.
3. Seppanen O.; Fisk W.; Mendell M. Ventilation Rates and Health. ASHRAE J. 2002, Daisey J.; Angell W.; Apte M. Indoor Air Quality, Ventilation and Health Symptoms in Schools: An Analysis of Existing Information LBNL 48287; US DOE/EPA DE-AC03-76SF0098.