Huamei Qi, Jiaxing Liu, Xiaoheng Deng, Hairong Lin, Jinsong Gui, Jingjing Zhang, Shaohua Wan, "Multi-Truck Multi-Drone Collaborative Delivery via EG-GAT Embedding Multi-Agent DRL in Rural Areas," IEEE Internet of Things Journal, doi: 10.1109/JIOT.2026.3675581.