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"Holy Knights". Metallo Italiano. Archived from the original on January 2, 2014. Retrieved January 2, 2014.
Sangiorgi, Davide (December 19, 2002). "Holy Knights - Parla Syl Raven" (in Italian). Metallized.it. Retrieved December 13, 2013.
metalloitaliano.it
Apprendi, Michele (July 26, 2001). "Interviste / Holy Knights" (in Italian). Metallo Italiano. Archived from the original on January 2, 2014. Retrieved December 13, 2013.
Apprendi, Michele (July 26, 2001). "Interviste / Holy Knights" (in Italian). Metallo Italiano. Archived from the original on January 2, 2014. Retrieved December 13, 2013.
Cangiano, Ninni (September 17, 2012). "Intervista agli Holy Knights" (in Italian). All Around Metal. Archived from the original on December 28, 2013. Retrieved December 27, 2013.