http://127.0.0.1/xmlui/handle/123456789/16952 Fri, 17 Apr 2026 07:14:58 GMT 2026-04-17T07:14:58Z http://127.0.0.1/xmlui/handle/123456789/16953 Preparation and Properties of PbS x Sel - x Thin Flims and PbSx Sel-x Si Hetrojunctions. Sarma, Yerramilli S Wed, 01 Aug 1984 00:00:00 GMT http://127.0.0.1/xmlui/handle/123456789/16953 1984-08-01T00:00:00Z