*Approximately Calculus*, American Mathematical Society, 292 pp., 2006. ISBN-13: 978-0-8218-3750-4

With T. Hsu, and M. Logan. The generalized Furedi conjecture holds for finite linear lattices. *Discrete Mathematics*, 306:3140--3144, 2006

With B. Rothschild. Cutsets and anti-chains in linear lattices. *Journal of Combinatorial Theory A*, 113(8):1783--1790, November 2006

With J. Pommersheim. Unique factorization in generalized power series rings. *The Proceedings of the American Mathematical Society*, 134(5):1277--1287, 2006

With M. Logan. A new matching property for posets and existence of disjoint chains. *Journal of Combinatorial Theory A*, 108(1):77--87, October 2004

With T. Hsu, M. Logan, and C. Towse, Partitioning the Boolean Lattice into a Minimal Number of Chains of Relatively Uniform Size, *European Journal of Combinatorics*, 24: 219-228, 2003

With T. Hsu, M. Logan, and C. Towse, Partitioning the Boolean Lattice into Chains of Large Minimum Size, *Journal of Combinatorial Theory Part A*, 97(1): 62-84, 2002