@misc{heerens_strategy_for_1993, 
author={Heerens, J.,Zerbst, U.,Schwalbe, K.-H.},
title={Strategy for characterizing fracture toughness in the ductile to brittle transition regime},
year={1993},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Heerens, J.; Zerbst, U.; Schwalbe, K.: Strategy for characterizing fracture toughness in the ductile to brittle transition regime. Fatigue and Fracture of Engineering Materials and Structures. 1993. vol. 16, no. 11, 1213-1230.}}