BAKOGIANNIS, Efthimios; KYRIAKIDIS, Charalampos; ZAFEIRIS, Vasileios. Using Unmanned Aerial Vehicles (UAVs) to analyze the urban environment. European Journal of Engineering and Formal Sciences, [S.l.], v. 3, n. 2, p. 20-28, aug. 2019. ISSN 2601-6311. Available at: <http://journals.euser.org/index.php/ejef/article/view/4543>. Date accessed: 04 aug. 2020. doi: http://dx.doi.org/10.26417/ejef.v3i2.p20-28.