found: Die "Jüngerkreise" des Täufers Johannes, 1991:title page (Knut Backhaus) page vii (foreword signed in Bielefeld, in 1990)
found: Der Hebräerbrief, 2009:title page (Knut Backhaus) back cover (Knut Backhaus; Dr. theol.; born 1960; professor of New Testament at the Universität München)
found: German Wikipedia, viewed May 27, 2022(Knut Backhaus; born July 27, 1960, in Schwerte an der Ruhr; German Catholic priest, theologian and New Testament scholar; ordained to the priesthood in the archdiocese of Paderborn on May 21, 1988; obtained his doctorate at the Theologische Fakultät Paderborn in 1989)
found: Deutsche Nationalbibliothek online catalog, viewed May 27, 2022(authorized access point: Backhaus, Knut; other data in authority record: Dr. theol.; born 1960; German Catholic theologian and New Testament scholar; active at the Katholisch-Theologische Fakultät of the Universität München)