title: Phylogenetic relationships of activated sludge isolates of ammonia oxidizers with different sensitivities to ammonium sulfate.
authors.affiliation: National Institute for Resources and Environment, AIST, MITI, Tsukuba 305-8569, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Suwa
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Sumino
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Noto