HartmanD. A Hebrew Signature in a Latin Manuscript of Galen. Sefer Yuḥasin ספר יוחסין | Review for the History of the Jews in South Italy<Br&gt;Rivista Per La Storia Degli Ebrei Nell’Italia Meridionale, Vol. 1, May 2013, pagg. 239-48, doi:10.6092/2281-6062/5598.