http://127.0.0.1/xmlui/handle/123456789/11896 Thu, 16 Apr 2026 21:42:38 GMT 2026-04-16T21:42:38Z http://127.0.0.1/xmlui/handle/123456789/11897 Stability of Non-Circular Tunnels In Soil and Rock Dutta, Puja Fri, 01 Oct 2021 00:00:00 GMT http://127.0.0.1/xmlui/handle/123456789/11897 2021-10-01T00:00:00Z