@misc{heerens_characterization_of_1991, 
author={Heerens, J., Petrovski, B., Schwalbe, K.-H.},
title={Characterization of cleavage fracture in the ductile to brittle fracture transition region using side grooved CT-specimen},
year={1991},
howpublished = {conference lecture: Magdeburg (D);},
note = {Heerens, J.; Petrovski, B.; Schwalbe, K.: Characterization of cleavage fracture in the ductile to brittle fracture transition region using side grooved CT-specimen. In: IX. Symposium Verformung und Bruch; Teil I. Magdeburg (D). 1991. 74-75.}}