1. Chemical and Biological Weapon Programmes;Hart,2013
2. Análisis de la amenaza química y biológica de Siria, Documento de Opinión del Instituto Español de Estudios Estratégicos 33/2012, 24 April 2012
http://www.ieee.es/Galerias/fichero/docs_opinion/2012/DIEEEO33-2012_AnalisisAmenazaQuimicaBiologicaSiria_RenePita.pdf
3. Unclassified Report to Congress on the Acquisition of Technology Relating to Weapons of Mass Destruction and Advanced Conventional Munitions, Covering 1 January to 31 December 2011,2012
4. http://www.counterwmd.gov/files/Acquisition_Technology_Report_030308.pdf