@misc{siegmund_dynamic_crack_1997, 
author={Siegmund, T., Fleck, N., Needleman, A.},
title={Dynamic crack growth across an interface},
year={1997},
howpublished = {journal article},
note = {Siegmund, T.; Fleck, N.; Needleman, A.: Dynamic crack growth across an interface. International Journal of Fracture. 1997. vol. 85, 381-402.}}