1. United Nations Framework Convention on Climate Change,1992
2. Paris Agreementhttps://unfccc.int/sites/default/files/english_paris_agreement.pdf
3. Third IMO GHG Study 2014;Smith,2014
4. A future regulatory framework for CO2 emissions of shipping in the Mediterranean Area;Goulielmos;Int. J. Euro–Mediterr. Stud.,2011
5. European Port Industry Sustainability Report 2016,2016