%0 Journal Article %A Mesfin Mekuria Woldaregay %A Gemechis File Duressa %T Robust numerical method for singularly perturbed parabolic differential equations with negative shifts %J Filomat %D 2021 %P 2383 %V 35 %N 7 %U http://geodesic.mathdoc.fr/articles/10.2298/FIL2107383W/ %R 10.2298/FIL2107383W %G en %F 10_2298_FIL2107383W