1. Groot RS de (1992): Functions of nature: Evaluation of nature in environment, planning management and decision making, Amsterdam, Wolters-Nordhoff
2. SCEP — Study of Critical Environmental Problems (1970): Man’s impact on the global environment. MIT Press, Cambridge
3. SRU — Rat von Sachverständigen für Umweltfragen (1978): Umweltgutachten 1978. Kohlhammer, Stuttgart, 638 S
4. Hueting R, Reijnders L, Boer B de, Lambooy J, Jansen H (1998): The concept of environmental functions and its valuation. Ecological Economics 25, 31–35
5. SETAC — Society of Environmental Toxicology and Chemistry (1992): Life Cycle Assessment. Workshop report, SETAC, Brüssel.