The Sanctity of the Leaders. Holy Kings, Princes, Bishops, and Abbots from Central Europe (11th–13th Centuries) ed. Gábor Klaniczay and Ildikó Csepregi, Central European Medieval texts Series, vol.  Budapest: Ceu Press, 2023, p. 692 ISBN: 978-615-5225-28-4
Zenodo (CERN European Organization for Nuclear Research)