W. Freiesleben , W. Palz , H. A. Ossenbrink , P. Helm

Keevers, M. J, Saris, F.W, Zhang, G. C, Zhao, J, Green, M. A, & Elliman, R. G. (1995). Screening of optical dopants in silicon solar cells for improved infrared response. In W Freiesleben, W Palz, H. A Ossenbrink, & P Helm (Eds.), 13th European Photovoltaic Solar Energy Conference : Proceedings of the International Conference, held at Nice, France 23-27 October, 1995 (pp. 1215–1218). Bedford.