Parking Cars of Different Sizes. - Richard Ehrenborg; Alex Happ (Am. Math. Mon., 2016)

On the powers of the descent set statistic. - Richard Ehrenborg; Alex Happ (Adv. Appl. Math., 2018)

The antipode of the noncrossing partition lattice. - Richard Ehrenborg; Alex Happ (Adv. Appl. Math., 2019)