3GRAY R T,LEVY S.Effect of design changes in railway catenary systems on power collection at high speed[J].Transaction of the ASME Journal of Engineering for Industry,1998,18(90):288-291.
4KIYOHIR A M.Reliability analysis of geometrically nonlinear structures with application to suspension bridges[D].California:University of Michigan,1999.
5LYU M R.Techniques for software reliability engineering[J].Testing and Evaluation,1999,34 (2):35-39.
