1. Shannon C E (1948) A Mathematical Theory of Communication. The Bell System Technical Journal 227(July, October): 379–423, 623–656
2. Meadow CT Yuan W (1997) Measuring the Impact of Information: Defining the Concepts. Information Processing & Management 33(6):697–714
3. Järvelin K, Wilson TD (2003) On conceptual models for information seeking and retrieval research. Information Research 9(1)
4. Cooley JN (2006) International Atomic Agency Safeguards under the Treaty on the Non-Proliferation of Nuclear Weapons: Challenges in Implementation. In: Avenhaus R et al (eds) Verifying Treaty Compliance: Limiting Weapons of Mass Destruction and Monitoring Kyoto Protocol Provisions, Springer
5. Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on their Destruction.
http://www.opcw.org/chemical-weapons-convention/
. Accessed 29 Feb 2019