Sim, I. ., Y. G. . Sun, S. H. . Kim, S. . Lee, C. G. . Kim, and J. Y. . Kim. “Performance of Digital Drone Signage System Based on DUET”. Journal of Web Engineering, vol. 21, no. 02, Jan. 2022, pp. 391-04, doi:10.13052/jwe1540-9589.21211.