%0 Journal Article %A A. Korzeniowski %A A. Opawski %T Bounds for reliability in the NBU, NWU and NBUE, NWUE classes %J Applicationes Mathematicae %D 1976 %P 1-5 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/am-15-1-1-5/ %R 10.4064/am-15-1-1-5 %G en %F 10_4064_am_15_1_1_5