1. Proc. 22nd IEEE-PVSC;Levine,1991
2. Proc. 12th European Photovoltaic Solar Energy Conf.;Brendel,1994
3. R. Brendel, R. Plieninger, IQE1D, distributed by Garshing Innovation GmbH.
4. Proc. 13th European Photovoltaic Solar Energy Conf.;Bisconti,1995
5. Optics;Klein,1993