Persistent UAV Service: An Improved Scheduling Formulation and Prototypes of System Components. - Byung Duk Song; Jonghoe Kim; Jeongwoon Kim; Hyorin Park; James R. Morrison; David Hyunchul Shim (J. Intell. Robotic Syst., 2014)

Toward flexible and persistent UAV service: Multi-period and multi-objective system design with task assignment for disaster management. - Byung Duk Song; Hyorin Park; Kyungsu Park (Expert Syst. Appl., 2022)