?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Hoang%2C+Van+Truong&rft.aulast=Hoang&rft.aufirst=Van+Truong&rft.date=22+August+2019&rft.title=Reconfigurable+Multi-UAV+Formation+Using+Angle-Encoded+PSO&rft.genre=proceeding