1.
Marchuk N, Semenyshyna I. ABOUT THE INVARIANT TORS OF CALCULATION SYSTEMS OF DIFFERENTIAL EQUATIONS CONTAINING DEVIATIONS OF A DISCRETE ARGUMENT. ges [Internet]. 2022 Feb. 28 [cited 2024 Apr. 25];1(sge09-01):95-108. Available from: https://desymp.promonograph.org/index.php/sge/article/view/sge09-01-012