References
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- Nakamoto, N., 1986: Role of filamentous algae in a slow sand filter pond. — J. Jap. Wat. Wks. Ass. 55 (3): 19–21.
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- Nakamoto, N. & Sakai, M., 1991: Importance of continuous culture of filamentous diatom in a slow sand filter. — Jap. J. Wat. Treat. Biol. 27: 33–38.
- Nakamoto, N. & Sakai, M., 1992: Normalized head loss as a clogging indicator in a slow sand filter and its algal flora. — Jap. J. Wat. Treat. Biol. 28: 7–16.
- Rachwall, A. J., Bauer, M. J. & West, J. T., 1988: Advanced technology for upgrading slow sand filters. — In: Graham, N. J. D. (ed.): Slow sand filtration: 331–347. — John Wiley and Sons.
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