1. American Law Institute (1963) Restatement (Second) of Torts. §363 (2)
2. American Law Institute (1977) Restatement (Second) of Torts §840 (2)
3. Legal liability for defective trees in the United States;Anderson;Landscape and Urban Planning,1987
4. Tree or limb falls onto adjoining private property: personal injury and property damage liability;Bailey;American Law Reports 4th,1987
5. Trees and statics: nondestructive failure analysis;Brudi,2002