J. Antunes, L. Brisolara, and P. Ferreira. "UAVs as Data Collectors in the WSNs: Investigating the Effects of Back-and-Forth and Spiral Coverage Paths in the Network Lifetime", in Anais do X SimpĆ³sio Brasileiro de Engenharia de Sistemas Computacionais, Evento Online, 2020, pp. 175-182.