On the Author in German Shakespeare Research (Das neue digitale ‘Shakespeare-Bildarchiv Oppel-Hammerschmidt’ an der Universitätsbibliothek Mainz. Reden und Beiträge (2011, pp. 32-35)
Contemporary Authors – A Bio-Bibliographical Guide to Current Writers (2008)
www.paperbackswap.com/Hildegard-Hammerschmidt-Hummel/author/