1. A portable NON-invasive XRD-XRF instrument for the study OF art objects;Sarrazin,2009
2. Boltraffio, and the influence of Leonardo;Keith;Natl Gallery Tech Bull,1996
3. Leonardo da Vinci's “Virgin of the Rocks”: treatment, Technique and Display;Keith;Natl Gallery Tech Bull,2011
4. Painting practice in milan in the 1490s: the influence of Leonardo | technical bulletin vol 32 | national Gallery, london;Spring;Natl Gallery Tech Bull,2011
5. Looking for common fingerprints in Leonardo's pupils using nondestructive pigment characterization;Bonizzoni;Appl Spectrosc,2017