@article{ADM_2020_29_2_a5,
     author = {E. Drellich},
     title = {The containment poset of type $A$ {Hessenberg} varieties},
     journal = {Algebra and discrete mathematics},
     pages = {195--210},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2020_29_2_a5/}
}