Erping Jia Haoyao Chen Yanjie Li Yunjiang Lou Yunhui Liu 0001 Visual Servo Tracking Control of Quadrotor with a Cable Suspended Load. 72-85 2017 ICVS https://doi.org/10.1007/978-3-319-68345-4_7 conf/icvs/2017 db/conf/icvs/icvs2017.html#JiaCLLL17