@misc{retzmann_development_of_2015, 
author={Retzmann, A.},
title={Development of Capillary-HILIC/ICP-MS for the determination of Gadolinium-based contrast agents in the aquatic and estarine environments (Masterarbeit)},
year={2015},
howpublished = {master thesis: Universitaet Hamburg, FB Chemie},
note = {Online available at: \url{} (DOI). Retzmann, A.: Development of Capillary-HILIC/ICP-MS for the determination of Gadolinium-based contrast agents in the aquatic and estarine environments (Masterarbeit). Universitaet Hamburg, FB Chemie, 2015.}}