1. Joosten LAJ, Hekkert MP, Worrell E, Turkenburg WC. STREAMS: a new method for analysing material flows through society. Resour Conserv Recycl 1999;27:249–266.
2. CBS. The production structure of the Netherlands economy; part XIX: input–output tables and make-and-use tables 1988–1990. Voorburg, The Netherlands: Statistics Netherlands, 1993.
3. CBS. Annual statistics of the Dutch foreign trade 1990. Voorburg: The Netherlands: Statistics Netherlands, 1992, pp. 228–246.
4. De milieugerichte levenscyclusanalyse van vier typen vloerbedekking;Potting,1993
5. APME, Information system on plastics recycling in Western Europe. Brussels, Belgium: APME/PWMI, 1992.