1. Constitution of WHO: Principles http://who.int/about/mission/en/
2. Pandemic influenza preparedness Framework for the sharing of influenza viruses and access to vaccines and other benefits http://www.who.int/influenza/resources/pip_framework/en/
3. Implementation of the International Health Regulations 2005 Report of the Review Committee on the Functioning of the International Health Regulations (2005) in relation to Pandemic (H1N1) 2009 http://apps.who.int/gb/ebwha/pdf_files/WHA64/A64_10-en.pdf?ua=1