Conference Record of the Twentieth IEEE Photovoltaic Specialists Conference > 1988 > 296 - 300 vol.1
Conference Record of the Twentieth IEEE Photovoltaic Specialists Conference > 1988 > 1591 - 1593 vol.2
Conference Record of the Twentieth IEEE Photovoltaic Specialists Conference > 1988 > 1510 - 1514 vol.2
Conference Record of the Twentieth IEEE Photovoltaic Specialists Conference > 1988 > 312 - 316 vol.1