@misc{kelly_khan_leduc_tayal_prud'homme_2005, title={Compositions for fracturing subterranean formations}, volume={6,936,454}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Kelly, R. M. and Khan, S. A. and Leduc, P. and Tayal, A. and Prud'homme, R. K.}, year={2005} }
 @misc{kelly_khan_leduc_tayal_prud'homme_1995, title={Methods and compositions for fracturing subterranean formations}, volume={5,421,412}, number={1995 Jun. 6}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Kelly, R. M. and Khan, S. A. and Leduc, P. and Tayal, A. and Prud'homme, R. K.}, year={1995} }