@misc{heerens_specimen_size_1991, 
author={Heerens, J.,Petrovski, B.},
title={Specimen size effect in the ductile to brittle transition regime using CT-specimens},
year={1991},
howpublished = {conference lecture: Vienna (A); 04.-05.04.1991},
note = {Online available at: \url{} (DOI). Heerens, J.; Petrovski, B.: Specimen size effect in the ductile to brittle transition regime using CT-specimens. European Structural Integrity Society (ESIS): Technical Committee I; 20th Plenary Meeting. Vienna (A), 1991.}}