1. Arbeitsblatt ATV-DVWK-A 131 Bemessung von einstufigen Belebungsanlagen,2000
2. Bruchet, A., Mandra, V., 1994. Influence of municipal wastewaters on the composition of background organics in the Seine river. Consequences for the production of drinking water. In: AWWA (Ed.), Natural Organics in Drinking Water: Ecology to Engineering. AWWA, New York.
3. Normative patterns of diurnal urination across 6 age decades;Burgio;J. Urol.,1991
4. Arzneimittel-Kompendium der Schweiz;Documed,2004
5. Statistik in der analytischen Chemie;Doerffel,1990