“Approximation of Quasisymmetries Using Circle Packings,” Discrete and Computational Geometry  25 (2001), no 1, 103-124. “Earthquakes and Circle Packings,” Journal d’Analyse Mathematique  85 (2001), 371-396. “Combinatorial Excursions in Moduli Space,” with Roger W. Barnard, Pacific Journal of Mathematics  205 (2002), no. 1, 3-30. “Using a Commercial Web Tool to Supplement Face-to-Face Instruction,” with Gary Harris, ICTCM Proceedings, November 2002 “Noncompact Surfaces Are Packable,”  Journal d’Analyse Mathematique 90 (2003), 243-255. “Discrete Conformal Welding,” Indiana University Mathematics Journal 53 (2004), 765-804. “Three Extremal Problems for Hyperbolically Convex Functions,” with Roger W. Barnard and Kent Pearce, Computational Geometry and Function Theory 4 (2004), 97-109. “Layered Circle Packings,” with David Dennis, International Journal of Mathematics and Mathematical Sciences 15 (2005), 2429-2440. “LearnStar Empowers Texas Tech Students,” T.H.E. Journal, September 2005, 49.  “A Circle Packing Measurable Riemann Mapping Theorem,” Proceedings of the AMS 134 (2006), no. 7, 2139-2146.  “The Sharp Bound for the Deformation of a Disc Under a Hyperbolically Convex Map,” with Roger Barnard, Leah Cole, and Kent Pearce, Proceedings of the London Mathematical Society 93 (2006), no. 2, 395-417. “Reflections on Using LearnStar in University Mathematics Courses,”  submitted to ICTCM Proceedings  “Circle Packings, Quasiconformal Mappings, and Applications,” Quasiconformal Mappings and their Applications, 327-346. “Some Results on Spaces of Packable Riemann Surfaces,” with Roger W. Barnard and Eric M. Murphy, submitted to the Proceedings of the International Conference on Geometric Function Theory, Special Functions, and Applications in Pondicherry, India “Generalized Quadrilateral Circle Patterns,” with Casey Hume and Magdalena Toda, preprint “Constructing Conformal Maps of Triangulated Surfaces,” preprint