TY JOUR TI Economic efficiency of implementing unmanned aircraft systems in agricultural activities of institutions of the Federal Penitentiary Service of Russia: limitations and potential KW unmanned aerial vehicles KW precision agriculture KW economic efficiency KW prevented damage KW crop monitoring KW soil analysis KW reclamation control KW labour optimization KW Penal System of the Russian Federation JO JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT AU Tsarkova, E.G. PY 2026 IS 0 PB ITBO University