%0 Journal Article %A M. N. Kuznetsova %A I. T. Habibullin %A A. R. Khakimova %T On the~problem of classifying integrable chains with three independent variables %J Teoretičeskaâ i matematičeskaâ fizika %D 2023 %P 242-268 %V 215 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2023_215_2_a6/ %G ru %F TMF_2023_215_2_a6