Bibliografisk träff 2009-05-22 Temporal concentration changes of DEET, TCEP, terbutryn, and nonylphenols in freshwater streams of Hesse, Germany: possible influence of mandatory regulations and voluntary environmental agreements. Quednow K, Püttmann W. Environ Sci Pollut Res Int · research support, non-u.s. gov't; journal article · DOI 10.1007/s11356-009-0169-6