Useful TobTaxy documentation
Links below
World Health Organisation - Framework Convention on Tobacco Control (FCTC)
World Bank Report - Curbing the epidemic: governments and the economics of tobacco control
Tobacco or Health in the European Union - Past, Present and Future (esp. Chapters 2 + 3)
World Health Organization Technical Manual on Tobacco Tax Administration
Smoke Free Partnership - Spotlight on FCTC: Tobacco Taxation and Illicit Trade