Gelli, Piero (ed.) (2005). Debora e JaeleArchived May 6, 2016, at the Wayback Machine, Dizionario dell'opera, p. 290. Baldini Castoldi Dalai (republished on operamanager.it). Retrieved 17 February 2016 (in Italian).
web.archive.org
Gelli, Piero (ed.) (2005). Debora e JaeleArchived May 6, 2016, at the Wayback Machine, Dizionario dell'opera, p. 290. Baldini Castoldi Dalai (republished on operamanager.it). Retrieved 17 February 2016 (in Italian).