%0 Journal Article %A E. Drellich %T The containment poset of type $A$ Hessenberg varieties %J Algebra and discrete mathematics %D 2020 %P 195-210 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2020_29_2_a5/ %G en %F ADM_2020_29_2_a5