@misc{appel_plasticity_and_2000, 
author={Appel, F.},
title={Plasticity and Strength},
year={2000},
howpublished = {lecture: TU Hamburg-Harburg; WS 2000-2001},
note = {Online available at: \url{} (DOI). Appel, F.: Plasticity and Strength. TU Hamburg-Harburg, 2000.}}