A production lot-size model with Fuzzy-Ramp type demand and fuzzy deterioration rate under permissible delay in payments. - Antara Kundu; Tripti Chakrabarti (Int. J. Math. Oper. Res., 2011)

A multi-product continuous review inventory system in stochastic environment with budget constraint. - Antara Kundu; Tripti Chakrabarti (Optim. Lett., 2012)