%0 Journal Article %A Ron M. Adin %A Eli Bagno %A Estrella Eisenberg %A Shulamit Reches %A Moriah Sigron %T On two-sided gamma-positivity for simple permutations %J The electronic journal of combinatorics %D 2018 %V 25 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/7472/ %R 10.37236/7472 %F 10_37236_7472