He is a former number one ranked men 's recurve archer .
He also co-authored in 2005 a book on Olympic technique , entitled The Heretic Archer , with his father and coach , Vittorio Frangilli .
Vittorio Frangilli is a former number one ranked men 's recurve archer .
He also co-authored in 2005 a book on Olympic technique , entitled The Heretic Archer , with his father and coach , Vittorio Frangilli .