1. “Dynamic motion of Ru-polyoxometalate ions (POMs) on functionalized few-layer graphene”.  Ke X, Turner S, Quintana M, Hadad C, Montellano-López A, Carraro M, Sartorel A, Bonchio M, Prato M, Bittencourt C, Van Tendeloo G;, Small 9, 3922 (2013).   http://doi.org/10.1002/smll.201300378