Valliathal, M. and Uthayakumar, R. 2013. A study of inflation effects on an EOQ model for Weibull deteriorating/ameliorating items with ramp type of demand and shortages. Yugoslav Journal of Operations Research. 23, 3 (Oct. 2013), 441–455. DOI:https://doi.org/10.2298/YJOR110830008V.