[1] Wilken, S., Wilkens, V., Scheunemann, D., Nowak, R. -E., Maydell, K.  von, Parisi, J., and Borchert, H., “Semitransparent polymer-based solar cells with aluminum-doped zinc oxide electrodes”, ACS applied materials & interfaces / American Chemical Society, vol. 7.2015, no. 1. 2015.