@inproceedings{yamaguchi_hubbe_rojas_2009, title={Investigation of adsorption behaviors of polyampholytes}, volume={76}, booktitle={Kami Parupu Kenkyu? Happyo?kai: Ko?en yo?shishu?}, author={Yamaguchi, T and Hubbe, M. A. and Rojas, O. J.}, year={2009}, pages={6–9} }
 @article{silva_rojas_hubbe_park_yamaguchi_song_2009, title={Polyampholytes: Their use in papermaking and their solution and adsorption behaviors}, volume={70}, number={9}, journal={O Papel}, author={Silva, D. J and Rojas, O. J. and Hubbe, M. A and Park, S. W. and Yamaguchi, T. and Song, J.}, year={2009}, pages={40–50} }
 @inproceedings{wu_hubbe_rojas_yamaguchi_2008, title={Penetration of high-charge cationic polymers into silica gel particles and cellulosic fibers}, volume={Book B}, booktitle={Proceedings of the 2nd IPEC Conference}, publisher={Tianjin, China: Tianjin University of Science & Technology}, author={Wu, N. and Hubbe, M. A. and Rojas, O. J. and Yamaguchi, T.}, year={2008}, pages={626–649} }