1. Heavy Metals in Natural Waters;Moore,1984
2. Metal Pollution in the Aquatic Environment;Förstner,1981
3. Early childhood cirrhoses (ECC) in Germany between 1982 and 1994 with special consideration of copper etiology;Dieter;Eur. J. Med. Res.,1999
4. Non-Indian childhood cirrhosis;Müller;Eur. J. Med. Res.,1999
5. Water Quality Directive 98/83/EU, European Commission, Brussels, 1998.