BIBLIOGRAPHY CONTRIBUTOR Wilhelmina Jonxis-Henkemans First name Wilhelmina Last name Jonxis-Henkemans Bibliography entries by this contributor Kasten, Lloyd, John Nitti, and Wilhelmina Jonxis-Henkemans. 1997. “The Electronic Texts and Concordances of the Prose Works of Alfonso X, El Sabio”. (CD-ROM). Madison, WI: Hispanic Seminary of Medieval Studies.