%0 Journal Article %A M. V. Ignatyev %A A. S. Vasyukhin %T Rook Placements in An and Combinatorics of B-Orbit Closures %J Journal of Lie theory %D 2014 %P 931-956 %V 24 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2014_24_4_JLT_2014_24_4_a1/ %F JLT_2014_24_4_JLT_2014_24_4_a1