Scritti minori. - Mann, Thomas, <1875-1955>. (OLS)http://semarc/name/1550 (Tutte le opere)
Fondo Ciprandi.

[Versio]. - Ebied, Rifaat Y. (OLS)http://semarc/name/1129; Wickham, Lionel R. (OLS)http://semarc/name/1131 (Collection of unpublished Syriac letters of Cyril of Alexandria)