found: Bastgen, B. Die Besetzung der Bischofssitze in Preussen in der ersten Hälfte des 19. Jahrhunderts, 1978:title page (Reimund Haas)
found: Ecclesia Monasteriensis, 1992:title page (Reimund Haas) page 408 (born 1949 in Essen; Dr. theol., Lic. theol., Dipl. theol.)
found: Frömmigkeit & Wissen, 2003:title page (Reimund Haas)
found: German Wikipedia, viewed November 22, 2021(Reimund Haas; born July 6, 1949, in Essen; German church historian; active in Cologne)
found: Deutsche Nationalbibliothek online catalog, viewed November 22, 2021(authorized access point: Haas, Reimund; other data in authority record: Prof. em. Dr. theol., Dr. h.c. lic. theol.; German archivist and church historian; born 1949 in Essen; resides in Cologne; he was head of the diocesan archives (Historisches Archiv) of the Archdiocese of Cologne from 1984 to 2014; he was professor at the Philosophisch-Theologische Hochschule Münster)
