1. EPA, Indoor Air Quality, Sources of Indoor Air Pollution – Organic Gases (Volatile Organic Compounds – VOCs), updated on October 22, 2006. http://www.epa.gov/iaq/voc.html.
2. EPA, Technology Transfer Network, Air Toxics Website, Benzene, updated on October 22, 2006. http://www.epa.gov/ttnatw01/hlthef/benzene.html.
3. NIOSH Pocket Guide to Chemical Hazards, NIOSH, Publication No. 2005-151, updated on October 22, 2006. http://www.cdc.gov/niosh/npg/npgd0049.html.
4. Behavioral experimental studies of a material towards development of optical fibre organic compounds sensor;Bariáin;Sens. Actuators B,2001