%0 Journal Article %A Č. Duboka %A Ž. Aresnijević %A J. Todorović %T Preventive Maintenance of Units Subject to Two Kinds of Wear Failure %J Yugoslav journal of operations research %D 1996 %P 85 %V 6 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_1996_6_1_a6/ %G en %F YJOR_1996_6_1_a6