@misc{schwalbe_ductile_crack_1992, 
author={Schwalbe, K.-H.},
title={Ductile crack growth under plane stress conditions: Size effects and structural assessment; I. Size and geometry effects on crack growth resistance},
year={1992},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Schwalbe, K.: Ductile crack growth under plane stress conditions: Size effects and structural assessment; I. Size and geometry effects on crack growth resistance. Engineering Fracture Mechanics. 1992. vol. 42, no. 2, 211-219.}}