Conference Record of the Twenty Sixth IEEE Photovoltaic Specialists Conference - 1997 Photovoltaic specialists conference Photovoltaic Specialists Conference, 1997., Conference Record of the Twenty-Sixth IEEE. :251-254 1997
Conference Record of the Twenty Third IEEE Photovoltaic Specialists Conference - 1993 (Cat. No.93CH3283-9) Photovoltaic specialists conference Photovoltaic Specialists Conference, 1993., Conference Record of the Twenty Third IEEE. :153-156 1993