1. Integrated Environmental and Economic Accounting;UN,1993
2. Natural Resource Accounting and Analysis, the Norwegian Experience 1978-1986;Alfsen,1987
3. Environmental accounting in development policy: the French experience;Theys,1989
4. Physical Input-Output Tables for Germany, 1990, Eurostat Working Paper No. 2/1998/B/1;Stahmer,1998
5. Material flow accounting and analysis: where to go at a European level;Steurer,1997