found: Studien zum Kanzlei- und Urkundenwesen Kaiser Heinrichs VI., 2002:title page (Thomas Ertl)
found: Alle Wege führten nach Rom : Italien als Zentrum der mittelalterlichen Welt, 2010:title page (Thomas Ertl) jacket (born 1968; historian; works at Freie Universität Berlin)
found: German Wikipedia, viewed April 15, 2024(Thomas Ertl (Historiker); Thomas Ertl; born October 27, 1968, in Innsbruck; Austrian historian; from 2011 to 2018, he was professor of economic history of the Middle Ages at the Universität Wien; in October, 2018, he joined the faculty of the Friedrich-Meinecke-Institut in Berlin)
found: Deutsche Nationalbibliothek online catalog, viewed April 15, 2024(authorized access point: Ertl, Thomas; other data in authority record: Dr. phil., Prof.; Austrian historian, active in Germany; born 1968 in Innsbruck; after teaching at the universities of Vienna and Heidelberg, he is currently associated with the Friedrich-Meinecke-Institut at the Freie Universität Berlin (as of 2018))