1. BBC Devon News (2001). Lollipops gag late-night revellers. BBC News (online).
2. BBC News (2000). Mexico club blaze kills 19. BBC News, Friday, 20 October 2000.
3. Ibiza uncovered: changes in substance use and sexual behaviour amongst young people visiting an international night-life resort;Bellis;International Journal on Drug Policy,2000
4. Three years of research on risk behaviour in Ibiza;Bellis,2001
5. Bowcott, O. (2001). Ecstasy deaths may have been called by heat, not a bad batch. The Guardian, Saturday, 30 June 2001.