1. Angell vs Polaris Production Corporation. 280 Fed Appx 748 (10th Cir 2008).
2. Arizona Revised Statutes. Sec 3–112; 2011.
3. Trespassory art;Bezanson;Univ Mich J Law Reform,2010
4. Bradley vs American Smelting and Refining Company. 635 F Supp 1154 (WD Wash 1986).
5. California Food and Agricultural Code. Secs 5321, 5762; 2011.