1. Animal Enterprise Protection Act of 1992, 18 USC Sec. 43 1992 http://thomas.loc.gov/cgi-bin/query/z?c102:S.544.ENR
2. Animal Enterprise Terrorism Act of 2006, 18 USC Sec. 43 2006 https://www.govtrack.us/congress/bills/109/s3880/text
3. Anti-Tree Spiking Act of 1996, 18 USC Sec. 1864 1996 http://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title18-section1864&num=0&edition=prelim
4. Australia v. Japan: New Zealand Intervening 2014 http://www.icj-cij.org/docket/index.php?p1=3&p2=1&case=148&code=aj&p3=4
5. What is called eco-terrorism;Buell;Journal of Theory and Criticism,2009