Palacio, L.A., Silva, E.R., Catalao, R., Silva, J.M., Hoyos, D.A., Ribeiro, F.R. and Ribeiro, M.F. (2008) Performance of supported catalysts based on a new copper vanadate-type precursor for catalytic oxidation of toluene. Journal of Hazardous Materials, 153, 628-634.