Müller-Wille, S. Characters written with invisible ink: Elements of hybridism 1751 - 1875 / Staffan Müller-Wille. Conference A Cultural History of Heredity II : 18th and 19th centuries.(2003).
Lua i Stíl Chicago (17ú heag.)Müller-Wille, Staffan. "Characters Written with Invisible Ink: Elements of Hybridism 1751 - 1875 / Staffan Müller-Wille." Conference A Cultural History of Heredity II : 18th and 19th Centuries.(2003) .
Lua MLA (8ú heag.)Müller-Wille, Staffan. "Characters Written with Invisible Ink: Elements of Hybridism 1751 - 1875 / Staffan Müller-Wille." Conference A Cultural History of Heredity II : 18th and 19th Centuries.(2003), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.