TY - JOUR T1 - On Optimizing a Multi-Mode Last-Mile Parcel Delivery System with Vans, Truck and Drone JO - Electronics UR - http://dx.doi.org/10.3390/electronics10202510 PY - 2021/10/15 AU - Wang C AU - Lan H AU - Saldanha-da-Gama F AU - Chen Y ED - DO - DOI: 10.3390/electronics10202510 PB - MDPI AG VL - 10 IS - 20 SP - 2510 EP - 2510 Y2 - 2024/10/23 ER -