@misc{brokmeier_preferred_orientation_1989, 
author={Brokmeier, H.-G., Bunge, H. J., Ritter, C.},
title={Preferred orientation of lherzolithe},
year={1989},
howpublished = {report},
note = {Brokmeier, H.; Bunge, H.; Ritter, C.: Preferred orientation of lherzolithe. 1989.}}