%0 Journal Article %A I. T. Habibullin %T Discrete Zakharov--Shabat systems and integrable equations %J Zapiski Nauchnykh Seminarov POMI %D 1985 %P 137-146 %V 146 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1985_146_a8/ %G ru %F ZNSL_1985_146_a8