Barrett, A., Lawlor, J., and Scott, S. (1997). Introduction: The Fiscal System and the Polluter Pays Principle, Alan Barrett, John Lawlor, Sue Scott, The Fiscal System and the Polluter Pays Principle: A Case Study of Ireland, Aldershot: Ashgate, https://www.esri.ie/publications/introduction-the-fiscal-system-and-the-polluter-pays-principle