192986document69832World Oil Resources Their Assessment and Potential for the 21st Century.pdfapplication/pdf3012807d88817218ce51fc1ee134f5dcMD512214802016-08-12 08:14:40https://pure.iiasa.ac.at/id/eprint/13699/1/World%20Oil%20Resources%20Their%20Assessment%20and%20Potential%20for%20the%2021st%20Century.pdf