1. Dioxins: Sources of Environmental Load and Human Exposure;Fiedler;Toxicol. Environ. Chem.,1990
2. Statistisches Jahrbuch 1989 für die Bundesrepublik Deutschland,1989
3. Daten zur Umwelt 1988/89;Umweltbundesamt,1989
4. Data for calculation of landfill gases from D. Wintermeyer,1992
5. Dioxin Emissions to the Air: Mass Balance for Germany Today and in the Year 2000;Fiedler;Organohalogen Compounds,1990