Accuracy assessment of RTK-GNSS equipped UAV conducted as-built surveys for construction site modellingVarbla, Sander; Puust, Raido; Ellmann, ArtuSurvey review2021 / p. 477-492 https://doi.org/10.1080/00396265.2020.1830544 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Centimetre-range deformations of built environment revealed by drone-based photogrammetryVarbla, Sander; Ellmann, Artu; Puust, RaidoAutomation in Construction2021 / art. 103787 https://doi.org/10.1016/j.autcon.2021.103787 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS