@article{1999, title={Ammonium Oxidation in Mixed-population Biofilms Determined with the Use of Microelectrodes and in situ Hybridization}, author={Hisashi SATOH and Satoshi OKABE and Yoshimasa WATANABE}, journal={Journal of Japan Society on Water Environment}, volume={22}, number={3}, pages={206-214}, year={1999}, doi={10.2965/jswe.22.206} }