1. Eurostat yearbook, A Statistical Eye on Europe. Data 1988–1998, Luxembourg, Office for Official Publications of the European Commission, 2000.
2. GERBER M, The Antioxidants in Tomatoes and Tomato Products and their Health Benefits, ed AMITOM, Report of a European Commission Concerted Action, France, at http://tomato@tomate.org2000.
3. ‘vegetables, fruits and cancer. I: Epidemiology’;STEINMETZ;Cancer Causes Control,1991
4. ‘Vegetables, fruits and cancer. II: Mechanisms’;STEINMETZ;Cancer Causes Control,1991
5. ‘Vegetables, fruits and cancer prevention: a review’;STEINMETZ;J Am Diet Assoc,1996