@misc{dogan_engineering_fracture_2000, 
author={Dogan, B.},
title={Engineering Fracture Mechanics},
year={2000},
howpublished = {lecture: M.E.T.Universitaet; 03.07.2000-12.08.2000},
note = {Online available at: \url{} (DOI). Dogan, B.: Engineering Fracture Mechanics. M.E.T.Universitaet, 2000.}}