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by Taccione, Viviana; Di Paola, Leonardo
by Arnold, Marilyn
by Méndez, Leonardo E.
by Canada, Emily
by Freud, Sigmund
by de Vinci, Leonardo; Ravaisson-Mollien, Charles
by Pacioli, Luca; de Vinci, Leonardo
by Leonardo, da Vinci
by Borges, Leonardo
by Adrian, Iacob