Oliveira, D. and Mendes, I. (2017) “Green Taxation on Competitiveness: The Effect of the ISP Tax on the Portuguese Retail Sector of Road Fuels”, International Journal of Energy Economics and Policy, 7(1), pp. 178–184. Available at: https://econjournals.com/index.php/ijeep/article/view/3652 (Accessed: 29 March 2024).