His Die südostdeutschen schreibschulen und bibliotheken in der Karolingerzeit, 1940.
Biblical commentaries from the Canterbury school of Theodore and Hadrian, 1994 CIP t.p. (Bernhard Bischoff, late prof. of med. Latin philology, Univ. of Munich) pref. (d. Sept. 17, 1991)
Katalog der festländischen Handschriften des neunten Jahrhunderts, 1998 v. 1, t.p. (Bernhard Bischoff) pref. (d. 1991)
Biog. & geneal. master index, July 18, 2005 (Bischoff, Bernhard (1906-1991))
Wikipedia, viewed July 23, 2014 (Bernhard Bischoff (20 December 1906 - 17 September 1991) was a German historian, paleographer, and philologist; he was born in Altendorf (administrative division of Altenburg, Thuringia), and he died in Munich)