@misc{zerbst_estimation_of_1991, 
author={Zerbst, U., Heerens, J., Petrovski, B.},
title={Estimation of lower bound fracture resistance of a pressure vessel steel based on different proposals},
year={1991},
howpublished = {conference lecture: Geesthacht (D);},
note = {Zerbst, U.; Heerens, J.; Petrovski, B.: Estimation of lower bound fracture resistance of a pressure vessel steel based on different proposals. European Structural Integrity Society (ESIS): Technical Committee I; 21st Plenary Meeting. Geesthacht (D), 1991.}}