Wittmann, Barbara Kunsthistorisches Institut in Florenz, MPI, Max Planck Society; Department Experimental Systems and Spaces of Knowledge, Max Planck Institute for the History of Science, Max Planck Society;
Wittmann, B. (2004). Edouard Manet, 'Porträt Emile Zola'. Kunsthistorische Arbeitsblätter, 12, 29-36.