%0 Journal Article %A G. F. Helminck %A V. A. Poberezhny %A S. V. Polenkova %T Strict versions of integrable hierarchies in pseudodifference operators and the~related Cauchy problems %J Teoretičeskaâ i matematičeskaâ fizika %D 2019 %P 225-245 %V 198 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2019_198_2_a2/ %G ru %F TMF_2019_198_2_a2