References
- Dahl-Madsen, K. I. & Simonsen, J., 1974: Water Stream Simulation. — Research report from the Water Quality Inst, and the Laboratory of Sanitary Engineering, Techn. Univ. of Denmark (in Danish).
- Gudenåudvalget (The River Gudenå Committee), 1976: The River Gudenå Investigation. — Concise Report (in Danish).
- Nyholm, N., 1978: A Simulation Model for Phytoplankton Growth and Nutrient Cycling in Eutrophic, Shallow Lakes. — Ecol. Modelling 4: 279–310.