2Richard A. Epstein, Notice and Freedom of Contract in the Law of Servitudes, The California Law Review, Vol. 55, (1982), p1360.
3Thomas W. Merrill and Henry E. Smith, Optional Standardization in the Law of Property: The Numerus Clausus Principle, The Yale Law Journal, Vol. 110,(2000), p.54.
4Thomas W. Me.iLl and Henry E. Smith, Optional Standardization in the Law of Property: The Numerus Clausus Principle, The Yale law Journal, Vol. 110, (2000), pp16-261
5F. PoUoek, A First Book of Jurisprudence for Students of the Common Law, p174.
6中国人民大学宁红丽博士的学位论文.《占有制度研究》，第26页.
7Richard A. Epstein, Notice and Freedom of Contract in the Law of Servitudes, The California Law Review, Vol. 55, (1982), p1353.
8Thomas W. Merrill and Henry E. Smith, Optional Standardization in the law of Property: The Numerus Clausus Principle, The Yale law Journal, Vol. 110,(2000), p10.
9Thomas W. Merrill and Henry E. Smith, Optional Standardization in the Law of Property: The Numerus Clausus Principle, The YaleLaw Journal, Vol. 110, (2000), pp58-65.
