%0 Journal Article %A D. C. Huong %T The boundedness of non-autonomous nonlinear time-varying delay difference equations subject to external disturbances and its applications %J Eurasian journal of mathematical and computer applications %D 2020 %P 52-68 %V 8 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJMCA_2020_8_2_a3/ %G en %F EJMCA_2020_8_2_a3