L. Litavniece, S. Kodors, J. Dekšne, G. Lācis, I. Zarembo, and A. Pacejs, “RISK ANALYSIS FOR APPLE ORCHARD SURVEY AND MONITORING USING UAV”, ETR, vol. 1, pp. 116–122, Jun. 2023, doi: 10.17770/etr2023vol1.7234.