@misc{hilgert_modeling_bobbin_2009, 
author={Hilgert, J.},
title={Modeling Bobbin Tool Friction Stir Welding (Diplomarbeit)},
year={2009},
howpublished = {thesis: TU Hamburg-Harburg, FB Werkstoffphysik},
note = {Online available at: \url{} (DOI). Hilgert, J.: Modeling Bobbin Tool Friction Stir Welding (Diplomarbeit). TU Hamburg-Harburg, FB Werkstoffphysik, 2009.}}