Energy Problems
Commission of the European Communities: Euro-Barometer 26. Brussels, December 1986.
Commission of the European Communities: European Public Opinion and the Energy Problem in 1986. Brussels, January 1988.
Kommission der Europäischen Gemeinschaften: Die öffentliche Meinung Europas zu Energiefragen 1986 - Fakten und Meinungen. Brüssel, Mai 1987.
Commission of the European Communities: Europeans and Road Safety. Brussels, March 1987.