Bruno, BassanKochar, Subhash CFabio, Spizzichino2012-02-052012-02-052002Journal of applied probability,V39,p5333-544http://hdl.handle.net/10263/3170enResidual lifetimesMean residual life functionMultivariate extensions of IFR and DMRLLong concavitySchur concavityAging properties of mixturesSome bivariate notions of IFR and DMRL and related propertiesArticle