%0 Journal Article %A Rosario Pardo %A Marcos Zayat %A David Levy %T Thin film photochromic materials: Effect of the sol-gel ormosil matrix on the photochromic properties of naphthopyrans %J Comptes Rendus. Chimie %D 2010 %P 212-226 %V 13 %N 1-2 %I Elsevier %R 10.1016/j.crci.2009.05.006 %G en %F CRCHIM_2010__13_1-2_212_0