1. Agroecosystem modelling and simulation — the winter wheat agroecosystem model AGROSIM_W;Bellmann;Tagungsber. Akad. Landwirtschaftswiss. DDR,1986
2. Real-structure process description as the basis of understanding ecosystems and their development;Bossel;Ecol. Modelling,1992
3. The Use of SONCHES for Aquatic Ecosystem Modelling;Gnauck,1990
4. Zur Begriffsbestimmung desökologischen Compartments — eine Grundkonzeption zurÖkosystemanalyse;Knijnenburg;Flora,1980
5. Concept and usage of the interactive simulation system for ecosystems SONCHES;Knijnenburg;Ecol. Modelling,1984