9Paul. Goldstein, Copyright, patent, trademark and related state doctrines: cases and materials on the law of intellectual property, Westbury, NewYork, The foundation Press, In., 1990, part 2.
10David M. McGovem, What is Your Pitch?: Idea Protection is Nothing but Curvebatls, 15 Loy. L.A. Ent. L.J. 475.