%0 Journal Article %A Shoyimardonov, Sobirjon K. %T A non-linear discrete-time dynamical system related to epidemic SISI model %J Communications in Mathematics %D 2021 %P 505-525 %V 29 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/COMIM_2021__29_3_a13/ %G en %F COMIM_2021__29_3_a13