%0 Journal Article %A I. V. Vyugin %A R. I. Levin %T On the Riemann--Hilbert problem for difference and $q$-difference systems %J Informatics and Automation %D 2017 %P 326-343 %V 297 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2017_297_a17/ %G ru %F TRSPY_2017_297_a17