References
- Ilmavirta, V., 1982: Dynamics of phytoplankton in Finnish lakes. — Hydrobiologia 86: 11–20.
- Ilmavirta, V. 1988: Phytoflagellates and their ecology in Finnish brown-water lakes. — Hydrobiologia 161: 255–270.
- Keski-Uudenmaan Vesiensuojelun Kuntainliitto, 1984: Tuusulanjärven kunnostussuunnitelma (Restoration of Lake Tuusulanjärvi). — 214 pp. Helsinki.
- Tolonen, K., Ilmavirta, V., Hartikainen, H. & Suksi, J., 1990: Eutrophication of lake Tuusulanjärvi, Southern Finland studied by paleolimnological methods. — Aqua Fennica 20: 27–41.
- Tolonen, K., Ilmavirta, V., Uimonen-Smola, P., Hartikainen, H. & Suksi, J., 1993: Eutrophication history of a small, pelotrophic lake, Rusutjärvi, Southern Finland. — Aqua Fennica (in print).