1. Center for Disease Control and Prevention (CDC), Documentation for Immediately Dangerous to Life or Health Concentrations (IDLHs). , 1994 (accessed 20.06.11).
2. NIOSH, 2005: NIOSH, NIOSH Pocket Guide to Chemical Hazards – Nitrogen Dioxide. , 2005 (accessed 20.06.11).
3. ACGIH, 2011: American Conference of Governmental Industrial Hygienists, Nitrogen Dioxide: TLV® Chemical Substances Draft Documentation, Notice of Intended Change. , 2011 (accessed 27.06.11); EPA, 40 CFR Parts 50 and 58; Primary National Ambient Air Quality Standards for Nitrogen Dioxide; Final Rule. , 2010 (accessed 27.07.11).
4. Ultrasensitive detection of nitrogen oxides over a nanoporous membrane;Prabhakar;Analytical Chemistry,2010
5. An optimised gas sensor microsystem for accurate and real-time measurement of nitrogen dioxide at ppb level;Brunet;Sensors and Actuators B: Chemical,2008