Spectrum W L3 edge XAS HERFD of Tungsten at 10 K Spectrum W L3 edge XAS HERFD of Tungsten oxide WO2 at 10 K Spectrum W L3 edge XAS HERFD of Tungsten oxide WO3 at 10 K Spectrum W L3 edge XAS HERFD of Metal tungsten nanoparticles at 10 K Spectrum W L3 edge XAS HERFD of Tungsten oxide WO3_nanoparticles at 10 K Spectrum W L3 edge XAS HERFD of Sodium tungstate NaWO4.2H2O at 10 K Spectrum W L3 edge XAS HERFD of Sodium polytungstate 3NaWO4.9WO3.H2O at 10 K Spectrum W L3 edge XAS HERFD of Phosphotungstic acidH3[P(W3O10)4] · xH2O at 10 K