title: Simultaneously occurring nitrification and denitrification under oxygen gradient by polyelectrolyte complex-coimmobilized Nitrosomonas europaea and Paracoccus denitrificans cells.
authors.affiliation: Institute of Applied Biochemistry, University of Tsukuba, Sakura-mura, Niihari-gun, Ibaraki 305, Japan.
authors.forename: E
authors.initials: E
authors.lastname: Kokufuta
authors.forename: M
authors.initials: M
authors.lastname: Shimohashi
authors.forename: I
authors.initials: I
authors.lastname: Nakamura