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Knorr, Karen (1991) Marks of distinction. Thames and Hudson, London, UK. ISBN 9780500541654

Kubicki, Kathy and Bajac, Quentin and Torre, de la, Alfonso and Knorr, Karen (2011) Karen Knorr. Coleccion El Ojo Que Ves, 5 . La Fabricia, Madrid, Spain. ISBN 9788415303664