Springer, J., Poruba, A., Vaněček, M., Fay, S., Feitknecht, L., Wyrsch, N., Meier, J., Shah, A., Repmann, T., Kluth, O., Stiebig, H., Rech, B. Improved optical model for thin film silicon solar cells. In: NCNELIS, B., PALZ, W., OSSENBRINK, H. A., HELM, P., eds. Seventeenth European Photovoltaic Solar Energy Conference. München: WIP, 2002, s. 2830-2835. ISBN 3-936338-08-6.