D. Reidel
A. Goetzberger , W. Palz , G. Willeke
Photonic Materials

Polman, A., Roorda, S., Sinke, W., & Saris, F. W. (1987). Improved short-circuit current of ion-implanted crystalline silicon solar cells. In A. Goetzberger, W. Palz, & G. Willeke (Eds.), Seventh E.C. Photovoltaic Solar Energy Conference : Proceedings of the International Conference held at Sevilla, Spain, 27-31 October 1986 (pp. 911–916).