Energy-dependent light quenching in CaWO4 crystals at mK temperatures by Strauss, R, Angloher, G, Bento, A, Bucci, C, Canonica, L, Carli, W, Erb, A, von Feilitzsch, F, Gorla, P, Guetlein, A, Hauff, D, Hellgartner, D, Jochum, J, Kraus, H, Lanfranchi, J, Loebell, J, Muenster, A, Petricca, F, Potzel, W, Proebst, F, Reindl, F, Roth, S, Rottler, K, Sailer, C, Schaeffner, K