@misc{zerbst_the_development_2001, 
author={Zerbst, U.,Cornec, A.},
title={The Development of an Engineering Flaw Assessment Method of GKSS: The ETM},
year={2001},
howpublished = {book part},
note = {Online available at: \url{} (DOI). Zerbst, U.; Cornec, A.: The Development of an Engineering Flaw Assessment Method of GKSS: The ETM. In: Kocak, M. (Ed.): The Life of a Crack, Initiation - Growth - Fracture, Manuscript 15. Geesthacht: GKSS-Forschungszentrum. 2001.}}