1. IARC (International Agency for Research on Cancer), Monographs on the Evaluation of Carcinogenic Risks of Chemicals to Humans. Tobacco Smoking, WHO, IARC, Lyon, France, 38, (1986).
2. IARC (International Agency for Research on Cancer), Monographs on the Evaluation of Carcinogenic Risks to Humans, WHO, IARC, Lyon, France, 46, (1989).
3. WHO (World Health Organisation) Air Quality Guidelines for Europe, Regional Office for Europe, European Series n? 23, Copenhagen (1987).
4. Ambient Air Levels and the Exposure of Children to Benzene, Toluene, and Xylenes in Denmark
5. Benzene, an experimental multipotential carcinogen: results of the long-term bioassays performed at the Bologna Institute of Oncology.