@misc{hildebrandt_development_and_2021, 
author={Hildebrandt, L.},
title={Development and application of analytical methods to sample; isolate and characterize nano- and microplastics in aquatic environments and associated trace metals},
year={2021},
howpublished = {doctoral thesis: Universität Hamburg},
note = {Online available at: \url{} (DOI). Hildebrandt, L.: Development and application of analytical methods to sample; isolate and characterize nano- and microplastics in aquatic environments and associated trace metals. Universität Hamburg, 2021.}}