Weyl group q-Kreweras numbers and cyclic sieving (with Vic Reiner), Ann. Comb. 22 (2018), no. 4, 819-874.
Generic singularities of nilpotent orbit closures (with Fu, Juteau, and Levy), Advances in Mathematics 305, (2017), 1-77.
Exterior powers of the reflection representation in Springer theory, Transformation Groups 16 (2011), no. 3, 889-911 (volume in honor of Tonny Springer).
Equivalence classes of ideals in the nilradical of a Borel subalgebra, Nagoya Journal of Math (celebrating George Lusztig's 60th birthday), 183 (2006), 161-185.
Component groups of unipotent centralizers in good characteristic (with George McNinch), Issue celebrating the 80th birthday of Robert Steinberg, J. Algebra, 260 (2003), no. 1, 323-337.
Normality of nilpotent varieties in E_6, Journal of Algebra, 270 (2003), no. 1, 288-306.