1. World Health Organization. WHO report on the global tobacco epidemic 2017: Monitoring tobacco use and prevention policies. Geneva, Switzerland, 2017. http://www.who.int/tobacco/global_report/2017/en/. (accessed 1 Sep 2017).
2. The Council of the European Union. Council Directive 2011/64/EU of 21 June 2011 on the structure and rates of excise duty applied to manufactured tobacco (codification). 2011. http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2011:176:0024:0036:EN:PDF
3. The Council of the European Union. Council Directive 2008/118/EC of 16 December 2008 concerning the general arrangements for excise duty and repealing Directive 92/12/EEC. 2008. http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2009:009:0012:0030:EN:PDF
4. The Council of the European Union. Council Directive 2002/10/EC of 12 February 2002 amending Directives 92/79/EEC, 92/80/EEC and 95/59/EC as regards the structure and rates of excise duty applied on manufactured tobacco. 2002. https://publications.europa.eu/en/publication-detail/-/publication/c1ea461e-fa5b-48b9-a241-13f271d40bc2/language-en
5. The Council of the European Union. Council Directive 2010/12/EU of 16 February 2010 amending Directives 92/79/EEC, 92/80/EEC and 95/59/EC on the structure and rates of excise duty applied on manufactured tobacco and Directive 2008/118/EC. 2010. http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:050:0001:0007:EN:PDF