1. Puppet children. A report of three cases;Angelman;Developmental Medicine and Child Neurology,1965
2. Angelman's (happy puppet) syndrome;Berg;American Journal of Diseases of Children,1972
3. Happy puppet syndrom;Berggreen;Ugeskrift vor Laeger,1972
4. The happy puppet syndrome;Bower;Archives of Disease in Childhood.,1967
5. Sindrome de Angelman o de la maroneta alegre;Comas;Boletin de la Associacion Medica di Puerto Rico,1976