%0 Journal Article %A V. I. Ukhobotov %A I. V. Izmest'ev %T On problem of controlling the process of cleaning a pond from impurity %J Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta %D 2021 %P 181-189 %V 57 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIMI_2021_57_a8/ %G ru %F IIMI_2021_57_a8