1.Import policy effects on the optimal oil price.
The Energy Journal, 1994, vol. 15, issue 3, pages 123-144
   Suranovic, Steven M.

2.Optimal tariffs on exhaustible resources
   Journal of International Economics，Volume 30, Issues 3-4, May 1991, Pages 285-299
   Larry Karp，David M. Newbery
   链接：http://www.sciencedirect.com/science/article/B6V6D-45CX0YD-24/2/32f8ebccfaf6e95513def52e52766ccc

3.Dynamically consistent oil import tariffs
   Canadian Journal of Economics, 1992
   L Karp, DM Newbery
  链接：http://www.jstor.org/pss/135707

4.OPEC AND THE U.S. OIL IMPORT TARIFF
   The Economic Journal, IOI(March 1991),303-313
   Larry Karp and David M.Newbery.
链接：http://www.jstor.org/pss/2233820

5.Disadvantageous oil tariffs and dynamic consistency
   The American Economic Review, 1990，E Maskin, D Newbery
  链接：http://www.jstor.org/pss/2006739