References
- Cullen, R. R. & Letterman, R. D., 1985: The effect of slow sand filter maintenance on water quality. — J. Amer. Water Works Assoc. 77 (12): 44–55.
- Di Bernardo, L., 1993: Métodos e Técnicas de Tratamento de Água. — Associação Brasileira de Engenharia Sanitária e Ambientai, Vol. II, Cap. 14, 1a Ed, 498 pp.
- Fox, K. R., Miltner, R. J., Logsdon, G. S., Dicks, D. L. & Drolet, L. F. 1984: Pilot-plant studies of slow-rate filtration. — J. Amer. Water Works Assoc. 76 (12): 62–68.
- Huisman, L., 1977: Slow Sand Filtration. — Delft University of Technology, Delft, 122 pp.
- Logsdon, G. S. & Fox, K., 1988: Slow sand filtration in the United States. — In: Graham, N. J. D. (ed.): Slow Sand Filtration: Recent Developments in Water Treatment Technology: Chichester, Ellis Horwood Limited, 413 pp.
- Palmer, C. M., 1977: Algae and Water Pollution. — An Illustrated Manual on the Identification, Significance and Control of Algae in Water Supplies and in Polluted Water. — Cincinnati, Municipal Environmental Research Laboratory, 123 pp.
- Raman, R. K., 1985: Controlling algae in water supply impoundments. — J. Amer. Water Works Assoc. 77 (8): 41–43.
- Slezak, L. A. & Sims, R. C, 1984: The application and effectiveness of slow sand filtration in the United States. — J. Amer. Water Works Assoc. 76 (12): 38–43.