%0 Journal Article %A Bolesław KopocińskiI %T Classes of reliability functions %J Mathematica Applicanda %D 1983 %P 37-54 %V 11 %N 23 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v11i23.1600/ %R 10.14708/ma.v11i23.1600 %G pl %F 10_14708_ma_v11i23_1600