Jiangchun Gu Haichao Wang 0001 Guoru Ding Yitao Xu 0001 Zhen Xue Huaji Zhou Energy-Constrained Completion Time Minimization in UAV-Enabled Internet of Things. 5491-5503 2020 7 IEEE Internet Things J. 6 https://doi.org/10.1109/JIOT.2020.2981092 db/journals/iotj/iotj7.html#GuWDXXZ20