In 1999, Lauren Vanpelt, a law student at Arizona State University, wrote a paper making a similar argument. Vanpelt points out that copyright law at the time required a copyright notice specify the year of the copyright and the copyright owner's name. The title cards to early Mickey Mouse films "Steamboat Willie", "Plane Crazy", and "Gallopin' Gaucho" do not clearly identify the copyright owner, and also misidentify the copyright year. However, Vanpelt notes that copyright cards in other early films may have been done correctly, which could make Mickey Mouse "protected as a component part of the larger copyrighted films".