1. BDE Bundesverband der deutschen Entsorgungswirtschaft E.V., 1995. Kreislaufwirtschaft in der Praxis, Nr. 1 Elektrogeräte (closed-loop waste management in practice, electrical appliances).
2. BFUB-Studie, 2001. Kosten der EU-weit vorgesehenen Regelungen zur Behandlung von Elektro- und Elektronikschrott (Costs of the EU intended regulations for the treatment of electrical and electronic equipment), Abschlussbericht Projektnummer B-I-01, Umweltberatung Fischer & Köchling GmbH Hamburg, Dezember.
3. The PROMCALC and GAIA decision support system for multicriteria decision aid;Brans;Decision Support System,1994
4. How to select and how to rank projects: the PROMETHEE method;Brans;European Journal of Operational Research,1986
5. Nuclear waste management: an application of the multicriteria PROMETHEE methods;Briggs;European Journal of Operational Research,1990