Burwitz, V. V., Kärcher, A., Mathes, L., Book, A., Paul, N., Schwarz-Selinger, T., Butterling, M., Hirschmann, E., Liedke,
M. O., Wagner, A., Unsal, E., Cuniberti, G., & Hugenschmidt, C. (2025). Tungsten
oxide thin films probed by depth-resolved positron annihilation spectroscopy. Physical Review B,
111:. doi:10.1103/PhysRevB.111.054114.