@misc{tzschichholz_beam_model_1994, author={Tzschichholz, F., Herrmann, H. J., Roman, H. E., Pfuff, M.}, title={Beam model for hydraulic fracturing}, year={1994}, howpublished = {journal article}, note = {Tzschichholz, F.; Herrmann, H.; Roman, H.; Pfuff, M.: Beam model for hydraulic fracturing. Physical Review B. 1994. vol. 49, no. 10, 7056-7059.}}