found: Work cat.: Müller-Witt, H. Öko-Steuern als neues Instrument in der Umweltpolitik, 1989.
found: The Economist, July 7, 1990(environmental taxes/environmental fees)
found: NYT, April 15, 1990(environmental taxes)
found: Wall Street Journal, May 21, 1990(environmental taxes)
found: Inside EPA Weekly, Aug. 3, 1990(environmental taxes)
found: LC database, Sept. 5, 1990(Pollution charges; effluent charges)
found: E Magazine, July/August, 1990(eco-taxes)
found: 95117016: L'Introduction des écotaxes en droit belge, 1994.
found: Green taxation in East Asia, c2011.
found: Tax Policy Center web site, Jan. 16, 2012(Green taxes (also called "environmental taxes" or "pollution taxes") are excise taxes on environmental pollutants or on goods whose use produces such pollutants)
notfound: BPI;Hennepin;Web. 3;IAC;LIVT