@misc{heerens_fracture_toughness_2002, 
author={Heerens, J.,Hellmann, D.,Ainsworth, R.A.},
title={Fracture toughness determination in the ductile to brittle transition regime - pre-cracked Charpy specimens compared with standardard compact specimens},
year={2002},
howpublished = {conference paper: Poitiers (F); 03.-05.10.2001},
note = {Online available at: \url{} (DOI). Heerens, J.; Hellmann, D.; Ainsworth, R.: Fracture toughness determination in the ductile to brittle transition regime - pre-cracked Charpy specimens compared with standardard compact specimens. In: Francois, D.; Pineau, A. (Ed.): From Charpy to Present Impact Testing, Charpy Centenary Conference - CCC 2001. Poitiers (F). 2002. 297-305.}}