[67] Deens Bureau voor Milieubescherming (Miljøstyrelsen), Dioxins emissions from waste incineration, Environmental Project 117, 1989. Deens Bureau voor Milieubescherming (Miljøstyrelsen), The effects of chlorine content on the formation of dioxin, Project 118, 1989. Deens Bureau voor Milieubescherming (Miljøstyrelsen), Dioxins - sources, levels and exposures in Denmark, Working report N°50/1997.
[68] Danish Environmental Protection Agency, Dioxins emissions from waste incineration, Environmental Project 117, 1989 Danish Environmental Protection Agency, The effects of chlorine content on the formation of dioxin, Project 118, 1989 Danish Environmental Protection Agency, Dioxins - sources, levels and exposures in Denmark, Working report N°50/1997