1. 1) Y. Inamori, Kaiqin XU, Y. Ebie and R. Inamori, “Mizujunkan shakai ni muketa haisui osui shori gijutsu no torikumi”, NTS, Haisui Osui Shorigijutsu Shuusei, pp. 3-28(2007).
2. 2) M. Kitagawa, “Characteristics and development of aerobic biological treatment technology”, Ebara Times, No. 228, (2010).
3. 3) Y. Suwa, “Chemolithotrophic ammonia oxidizers in nitrification process in wastewater treatment, and their molecular ecological analyses”, Soil Microorganisms, No. 52, pp. 41~52 (1998).
4. 4) S. Kyosai, “Gesui shori to sekkai”, Sekkou to Sekkai, Vol. 1985, No. 196, pp. 160－165(1985).
5. 5) T. Kozima, “Gesui shori ni okeru shousekihou wo motiita rin kaisyuugijutsu no kaihatsu”, Saga University, Doctoral Thesis, pp12-20(2004).