@misc{nagel_insights_into_2014, 
author={Nagel, B.},
title={Insights into Nitrogen and Particle Cycling in Marine Oxygen Minimum Zones (Dissertation)},
year={2014},
howpublished = {doctoral thesis: Universitaet Hamburg, FB Geowissenschaften},
note = {Nagel, B.: Insights into Nitrogen and Particle Cycling in Marine Oxygen Minimum Zones (Dissertation). Universitaet Hamburg, FB Geowissenschaften, 2014.}}