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2. Fisk W.J., Lei-Gomez Q., Mendell M.J.: Indoor Air 17, 284 (2007)
3. ISO: International Standard ISO 13788. International Standardization Organization, Geneva (2001)
4. ISO: International Standard 7345. International Standardization Organization, Geneva (1987)
5. ISO: International Standard ISO 9346. International Standardization Organization, Geneva (2007)