@article{GDZPPN002463474, title = {Testing Whether F is More IFR than G .}, journal = {Metrika}, volume = {37}, year = {1990}, pages = {45-58}, zbl = {0691.62046}, url = {http://dml.mathdoc.fr/item/GDZPPN002463474} }
Ahmad, I.A.; Kochar, S.G. Testing Whether F is More IFR than G .. Metrika, Tome 37 (1990) pp. 45-58. http://gdmltest.u-ga.fr/item/GDZPPN002463474/