@misc{groth_the_tissue_1997, 
author={Groth, T.},
title={The Tissue Compatibility of Biomaterials},
year={1997},
howpublished = {conference lecture: Cambridge, MA (USA);},
note = {Groth, T.: The Tissue Compatibility of Biomaterials. Vortrag am Institute of Technology. Cambridge, MA (USA), 1997.}}