@misc{dogan_fracture_toughness_1997, 
author={Dogan, B.,Schwalbe, K.-H.},
title={Fracture toughness testing of TiAl base intermetallic alloys},
year={1997},
howpublished = {journal article,GKSS report},
note = {Online available at: \url{} (DOI). Dogan, B.; Schwalbe, K.: Fracture toughness testing of TiAl base intermetallic alloys. Engineering Fracture Mechanics. 1997. vol. 56, no. 2, 155-165.}}