@article {Intra-2009,
title = {Intra- and Extra-Union Flexibility in Meeting the European Union's Emission Reduction Targets},
year = {2009},
url = {https://www.esri.ie/publications/intra-and-extra-union-flexibility-in-meeting-the-european-unions-emission-reduction-targets},
author = {Tol, R.},
journal = {ESRI Working Paper 290},
}