%0 Conference Proceedings %F zhang-ifac93 %A Zhang, Qinghua %A Basseville, Michèle %A Benveniste, Albert %T Early warning of slight changes in systems and plants with application to condition based maintenance %B Proceedings of the 12th IFAC World Congress %P 531-534 %C Sydney, AU %U http://dx.doi.org/10.1016/0967-0661(95)90226-0 %D 1993