6Paul R, Garvey P R, Lansdowne Z F. Risk matrix:An approach for identifying, assessing; and ranking program risks[J]. Air Force Journal of Logistics, 1998.
7Roberts B B. Integrated risk management: results and lessons-learned [A]. Proceedings of risk management symposium sponsored by the USAF,SMC and the aerospace and corporation[C]. February, 1999.
8Roberts B B. The benefits of integrated quantitative risk management[R]. The 12th Annual international Symposium of the International Council on Systems Engineering. Melbourne. Australia, July, 2001.
9Lansdowne Z F. Risk matrix: An approach for prioritizing risks and tracking risk mitigation progress[A]. Proceedings of the 30th annum project management institute 1999 seminars & symposium[C]. Philadelphia, USA, 1999.
10Garvey P R, I.ansdowne Z F. Risk matrix: an approach for identifying, assessing, and ranking program risks [J].Air Force Journal of Logistics, 1998, 22(1):16-23.