@misc{steglich_engineering_mechanics_2001, 
author={Steglich, D.},
title={Engineering Mechanics},
year={2001},
howpublished = {lecture: Christian-Albrechts-Universitaet; SS 2001},
note = {Online available at: \url{} (DOI). Steglich, D.: Engineering Mechanics. Christian-Albrechts-Universitaet, 2001.}}