%0 Journal Article %A Jacqueline Canny %A Feng-Xian Liu %A Gilbert Hervé %T Electrochemical synthesis and stability of the brown six-electron reduced β- and γ-12-tungstosilicates %J Comptes Rendus. Chimie %D 2005 %P 1011-1016 %V 8 %N 6-7 %I Elsevier %R 10.1016/j.crci.2004.11.005 %G en %F CRCHIM_2005__8_6-7_1011_0