found: Geschichte des Bistums Limburg, 1983:title page (Klaus Schatz, SJ)
found: LC data base, January 23, 1984(hdg.: Schatz, Klaus)
found: Zwischen Säkularisation und Zweitem Vatikanum, 1986:title page (Klaus Schatz) back cover (born 1938; Professor für Kirchengeschichte)
found: Geschichte der deutschen Jesuiten, 2013:title page (Klaus Schatz)
found: Deutsche Nationalbibliothek online catalog, viewed November 19, 2013(authorized access point: Schatz, Klaus; other data in authority record: born 1938; Jesuit; professor of church history at Philosophisch-Theologische Hochschule Sankt Georgen, Frankfurt am Main, Germany)
found: German Wikipedia, viewed April 26, 2018(Klaus Schatz SJ; born February 24, 1938, in Simmern/Hunsrück; German Roman Catholic theologian)