Probing the Motional Behavior of Eumelanin and Pheomelanin with Solid-State NMR Spectroscopy: New Insights into the Pigment Properties

Pierre Thureau, Fabio Ziarelli, Andre Thevand, Rachel W. Martin, Patrick J. Farmer, Stephane Viel, Giulia Mollica,
Chemistry-a European Journal, 18 10689-10700 (2012)