%0 Journal Article %A Ihsane Malass %A Nikolai Tarkhanov %T A perturbation of the de Rham complex %J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika %D 2020 %P 519-532 %V 13 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/JSFU_2020_13_5_a0/ %G en %F JSFU_2020_13_5_a0