References
- Hibell B, Andersson B, Ahlström S et al. The 1999 ESPAD Report, Alcohol and other Drug Use Among Students in 30 European Countries. Stockholm:The Swedish Council for Information on Alcohol and other Drugs, CAN Council of Europe (Pompidou Group), 2000.
- Statistics Greenland. ESPAD99 Rusmiddelundersogelse blandt unge, argang 1983 og 1984, i Gronland. Nuuk, 2000.
- Statistics Greenland. ESPAD 2003 Rusmiddelunder-søgelse blandt unge, argang 1986, 1987 og 1988, i Gronland. Nuuk, 2003.