References
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- Jackson, H. W., 1966: Plankton in water supplies and stabilization ponds. — Water Pollution Control 104: 33–35.
- Kalisz, L., 1972: The utilization of algae in treating municipal waste-water. (In Polish). – Zesz. Nauk. IGW. 34:1–102.
- Kyselowa, K., 1973: The plankton of ponds enriched with wastes from beet-sugar factories. — Acta hydrobiol. 15: 51–88.
- Lewkowicz, S., 1973: Chemical changes in the water and accumulation stratum of soils in ponds fertilized with beet-sugar factory wastes. — Acta hydrobiol. 15: 1–49.
- Liebmann, H., 1962: Handbuch der Frischwasser und Abwasser-Biologie. — G. Fischer Verl., Jena.
- Starmach, K., 1969: Inland waters — Hydrobiology outline. (In Polish). — Wyd. Uniw. Jagiell., Krakow.
- Uhlmann, D. & Wegelin, R., 1966: Oxydationsteiche, Theorie, Betriebserfahrungen, Hinweise für Bau und Betrieb. — WZT-Mitt. VVB Wassersorgung u. Abwasser-behandl., Potsdam.