1. X. Zhao, M. Fouladirad, C. Bérenguer and L. Bordes. Condition-based inspection/ replacement policies for non-monotone deteriorating systems with environmental covariates, Reliability Engineering and System Safety. 2010,95(8):921-934 (SCI)
2. N. Balakrishnan and L. Bordes, X. Zhao, Minimum-distance parametric estimation under progressive Type-I censoring. IEEE Transactions on Reliability, 59(2). 2010,413-425. (SCI)
3. Zhao, X ; Fouladirad, M ; Bérenguer, C.Adaptive residual-based maintenance policy for a deteriorating system in dynamic environment. Advances in Safety, Reliability and Risk Management. Aug 2012, 2263 -2270 (EI)
4. X. Zhao, M. Fouladirad and C. Bérenguer. Residual-based Inspection/replacement Policy for a Deteriorating System with Markovian Covariates, Proceeding of International Conference on Industrial Engineering and Engineering Management: 636-640, 7-10 December 2010. (EI)
5. X. Zhao, M. Fouladirad and C. Bérenguer. Condition-based maintenance and environmental parameters, Proceedings of the 38th ESReDA International Seminar, Hungary, May 4-5, 2010: 9p.
6. X. Zhao, M. Fouladirad, C. Bérenguer and L. Bordes. Optimal periodic inspection/replacement policy for deteriorating systems with explanatory variables, Martorell et al.: Safety, Reliability and Risk Analysis: Theory, Methods and Applications, 2009, 4: 593-601. London: Taylor & Francis Group. (EI)
7. X. Zhao, M. Fouladirad, C. Bérenguer and L. Bordes. Nonperiodic Inspection/Replacement Policy for Monotone Deteriorating System with Covariates. Proceeding 7th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes- SAFEPROCESS 2009, Barcelona, Spain, 30 June - 3 July, 2009.IFAC PapersOnLine website.(EI)
8. X. Zhao, M. Fouladirad, C. Bérenguer and L. Bordes. On Condition-based Maintenance Policy for Deteriorating System in Presence of Covariates, Proceeding MMR 2009 - Mathematical Methods in Reliability: Theory, Methods, Applications. VI International Conference, Moscow, Russia, 22 - 27 June 2009. - N. Kuznetsov & V. Rykov (eds) - Moscow: PFUR, 2009 - ISBN: 978-5-209-03668-5:233-237
9. X. Zhao, M. Fouladirad, C. Bérenguer and L. Bordes. Maintenance Policy for deteriorating system with explanatory variables, K. Kolowrocki, J. Soszynska and E. Zio: Proceeding of 2nd Summer Safety & Reliability Seminars, 2008, 2:377-384, Gdansk-Sopot, Poland, 22-28 June.Extended Version in Reliability & Risk Analysis: Theory & Applications.2009, 13 (2-2): 85-97.
10. X. Zhao and L. Bordes, Semi-parametric estimation of the proportional hazards model under progressive Type-I censoring. Proceedings of 5-th International Conference on Mathematical Methods in Reliability, Methodology and Practice, June, 2007, Glasgow, United Kingdom. CD-ROM,8p