Leonardo a Donnaregina. I Salvator Mundi per Napoli, di Nicola Barbatelli, CarloPedretti, Elio De Rosa Editore; 2017, p. 77. Giovanni Agosti, Vincenzo Farinella
com/2007/jan/15/entertainment/et-hammer15 27 March 2013閲覧。 ^ Pedretti, catalogue by Jane Roberts ; introduction by Carlo (1981). Leonardo da Vinci : the Codex Hammer :