1. Al-Ahmad, A., Haiß, A., Unger, J., Brunswick-Tietze, A., Wiethan, J., Kümmerer, K., in press. Effects of a realistic mixture of antibiotics on resistant and non-resistant sewage sludge bacteria in laboratory-scale treatment plants. Arch. Environ. Contam. Toxicol.
2. Resistance to antibiotics: are we in the post-antibiotic era?;Alanis;Arch. Med. Res.,2005
3. Alexy, R., 2003. Antibiotika in der aquatischen Umwelt: Eintrag, Elimination und Wirkung auf Bakterien (Antibiotics in the aquatic environment: input, elimination and effects against bacteria). Thesis. Albert-Ludwigs-Universität, Freiburg, Germany.
4. Alexy, R., Kümpel, T., Dörner, M., Kümmerer, K., 2001. Effects of antibiotics against environmental bacteria studied with simple tests. In: 11th Annual Meeting of SETAC Europe, Madrid, May 6–11th, Proceedings.
5. Effects of environment on compensatory mutations to ameliorate costs of antibiotic resistance;Björkman;Science,2000