%0 Journal Article %A Biplab Karmakar %A Karabi Dutta Choudhury %T Inventory Models With Ramp-Type Demand for Deteriorating Items With Partial Backlogging and Time-Varing Holding Cost %J Yugoslav journal of operations research %D 2014 %P 249 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/YJOR_2014_24_2_a5/ %G en %F YJOR_2014_24_2_a5