http://es.wikipedia.org/wiki/Loreto_Vittori

WWW ICCU, bibliot. ita., 07-02-2005---(Vittori, Loreto <1604-1670>)

The New Grove Dictionary of Opera, Macmillan, 1996---(Vittori, Loreto; b. Spoleto, bap. 5 Sept. 1600; d. Rome, 23 April 1670; Italian singer, composer and librettist)