An optimal ordering policy for a visitor-based purchasing system with stochastic delivery time and partial prepayment for profit maximizationAta Allah Taleizadeh, Hamidreza Zarei and Bhaba R. SarkerRAIRO-Oper. Res., 56 3 (2022) 1717-1735DOI: https://doi.org/10.1051/ro/2022047
