Official documents of Administrative Commission
http://ec.europa.eu/social/main.jsp?langId=en&catId=868
Access to European Union law
http://eur-lex.europa.eu/en/index.htm
Court of Justice of the European Union
http://curia.europa.eu/jcms/jcms/Jo2_6999/
Social Security Programs throughout the World
http://www.ssa.gov/policy/docs/progdesc/ssptw/index.html