1. The Poisonous Cloud Chemical Warfare in the First World War;Haber,2002
2. Overall view of chemical and biochemical weapons;Pitschmann;Toxins (Basel),2014
3. One Hundred Years of Chemical Warfare: Research, Deployment, Consequences;Friedrich,2017
4. Veterans at Risk: the Health Effects of Mustard Gas and Lewisite,1993
5. Organisation for the Prohibition of Chemical Weapons, Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction. https://www.opcw.org/chemical-weapons-convention/download-the-cwc/ (accessed May 2018).