A discrete-in-time probabilistic inventory model for deteriorating items under conditions of permissible delay in payments. - Nita H. Shah; Y. K. Shah (Int. J. Syst. Sci., 1998)

Eoq Model for Time-Dependent deterioration Rate with a temporary Price discount. - Bhavin J. Shah; Nita H. Shah; Y. K. Shah (Asia Pac. J. Oper. Res., 2005)