%0 Journal Article %A Stembridge, John R. %T Sign-twisted Poincaré series and odd inversions in Weyl groups %J Algebraic Combinatorics %D 2019 %P 621-644 %V 2 %N 4 %I MathOA foundation %U http://www.numdam.org/articles/10.5802/alco.62/ %R 10.5802/alco.62 %G en %F ALCO_2019__2_4_621_0