Fent, Karl, Petra Kunz, Markus Wolf, Hansruedi Schmutz, Daniel Gygax, and Clemens Schanné. 2004. “Chemical Analysis and Ecotoxicological Effects of UV Absorbing Organic Chemicals in Aquatic Environments”. CHIMIA 58 (5):325. https://doi.org/10.2533/000942904777677795.