A 2003 article by Douglas A. Hedenkamp in the "Virginia Sports and Entertainment Law Journal" analyzed Vanpelt's arguments, and concluded that she is likely correct. Hedenkamp provided additional arguments, and identified some errors in Vanpelt's paper, but still found that due to imperfections in the copyright notice on the title cards, Walt Disney forfeited his copyright in Mickey Mouse. He concluded: "The forfeiture occurred at the moment of publication, and the law of that time was clear: publication without proper notice irrevocably forfeited copyright protection."