Permutation patterns and statistics. - Theodore Dokos; Tim Dwyer; Bryan P. Johnson; Bruce E. Sagan; Kimberly Selsor (Discret. Math., 2012)

On 021-Avoiding Ascent Sequences. - William Y. C. Chen; Alvin Y. L. Dai; Theodore Dokos; Tim Dwyer; Bruce E. Sagan (Electron. J. Comb., 2013)