7Campbell, C. J. The Golden Century of Oil 1950-2050 [ M ]. Dordrecht/Boston/London : Kluwer Academic Publishers, 1991:345.
8Duncan, R. C. , Youngquist, W. Encircling the Peak of Word Oil Production [ M ]. Seattle, Washington: Institute on Energy and Man, 1998:32.
9Bob Williams. Debate over peask-oil issue boiling over, with major implications for industry, society [ J ]. Oil & Gas Journal, 2003,101 (27) : 18-29.
10Xiongqi Pang, Qingyang Meng, Guoping Bai etc. The Challenge and Countermeasures Brought by the Shortage of Oil and Gas in China. Ⅳ INTERNATIONAL WORKSHOP ON OIL AND GAS DEPLETION [ D]. Portugal: Centro de Geofisica de Evora University of Evora,2004:49-50.
