"Scheda F, \"Anonimo , Boltraffio. Portait Bust of a Youth\""@it . . "F Entry \"Anonimo , Boltraffio. Portait Bust of a Youth\""@en . . "Scheda F \"Anonimo , Boltraffio. Portait Bust of a Youth\""@it . . . . . . . . . "Anonimo , Boltraffio. Portait Bust of a Youth" . . . . . . . . . "F Entry, \"Anonimo , Boltraffio. Portait Bust of a Youth\""@en .