@misc{langer_determination_of_2010, 
author={Langer, V.},
title={Determination of Indoor Air Concentrations of Polyfluorinated Compounds with Passive Samplers (Diplomarbeit)},
year={2010},
howpublished = {thesis,GKSS report},
note = {Online available at: \url{} (DOI). Langer, V.: Determination of Indoor Air Concentrations of Polyfluorinated Compounds with Passive Samplers (Diplomarbeit). Leuphana Universitaet Lueneburg, FB Oekologie und Umweltchemie, 2010.}}