@misc{heerens_effects_of_1995, 
author={Heerens, J.},
title={Effects of size and geometry of fracture toughness in the upper shelf and transition regime},
year={1995},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Heerens, J.: Effects of size and geometry of fracture toughness in the upper shelf and transition regime. International Journal of Pressure Vessels and Piping. 1995. vol. 64, 255-258.}}