%0 Journal Article %A Mark Dukes %A Thomas Selig %A Jason P. Smith %A Einar Steingrímsson %T Permutation graphs and the abelian sandpile model, tiered trees and non-ambiguous binary trees %J The electronic journal of combinatorics %D 2019 %V 26 %N 3 %U http://geodesic.mathdoc.fr/articles/10.37236/8225/ %R 10.37236/8225 %F 10_37236_8225