@misc{heerens_fracture_toughness_2001, 
author={Heerens, J., Schoedel, M., Zerbst, U.},
title={Fracture Toughness of low Constrain Geometry Specimens using Delta5 and CTOA Concepts},
year={2001},
howpublished = {conference lecture: Mol (B);},
note = {Heerens, J.; Schoedel, M.; Zerbst, U.: Fracture Toughness of low Constrain Geometry Specimens using Delta5 and CTOA Concepts. ESIS Meeting of TC1 and TC8 at SCK-CEN. Mol (B), 2001.}}