Optimal Deployment for Target-Barrier Coverage Problems in Wireless Sensor Networks Si, Pengju ; Wang, Shuaishuai ; Shu, Lei ; Ning, Rui ; Fu, Zhumu Abstract Publication: IEEE Systems Journal Pub Date: June 2021 DOI: 10.1109/JSYST.2020.2990395 Bibcode: 2021ISysJ..15.2241S