6[4]Executive Order 13292.Further Amendment to Executive Order 12958,As Amended,Classified National Security Information[EB/OL].http://www.fas.org/sgp/bush/eoamend.html.
7[5]National Policy for the Security of National Security Telecommunications and Information Systems[EB/OL].http://www.fas.org/irp/offdocs/nsd/ nsd-42.htm.
8Ruud Cupers. Guidelines for ecological compensation associated with highways[J]. Biological Conservation, 1999(90):41 ~51
9Ruud Cupers. Ecologica l compensation of the impacts of a road[J].Ecological Engineering, 1996 (7):327~349