%0 Journal Article %A May Manal Bounif %A Abdelkader Gasmi %T Perturbation approach for a flow over a trapezoidal obstacle %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2022 %P 385-396 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2022_15_3_a11/ %G en %F JSFU_2022_15_3_a11