@misc{ahrens_polyfluoroalkyl_compounds_2009, 
author={Ahrens, L., Felizeter, S., Sturm, R., Xie, Z., Ebinghaus, R.},
title={Polyfluoroalkyl compounds in municipal waste water effluents and water samples along the river Elbe, Germany},
year={2009},
howpublished = {conference lecture: Koblenz (D);},
note = {Ahrens, L.; Felizeter, S.; Sturm, R.; Xie, Z.; Ebinghaus, R.: Polyfluoroalkyl compounds in municipal waste water effluents and water samples along the river Elbe, Germany. Water Framework Directive and Emerging Pollutants, Workshop. Koblenz (D), 2009.}}