%0 Journal Article %A I.A. Ahmad %A S.G. Kochar %T Testing Whether F is More IFR than G . %J Metrika %D 1990 %P 45-58 %V 37 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MET_1990__37_3-4_176269/ %F MET_1990__37_3-4_176269