Enumerating up-side self-avoiding walks on integer lattices. Williams, Lauren K. — 1996 The Electronic Journal of Combinatorics [electronic only]
Total positivity for cominuscule Grassmannians. Lam, Thomas; Williams, Lauren — 2008 The New York Journal of Mathematics [electronic only]
Bergman complexes, Coxeter arrangements, and graph associahedra. Ardila, Federico; Reiner, Victor; Williams, Lauren — 2005 Séminaire Lotharingien de Combinatoire [electronic only]
Faces of generalized permutohedra. Postnikov, Alex; Reiner, Victor; Williams, Lauren — 2008 Documenta Mathematica
A conjecture of Stanley on alternating permutations. Chapman, Robin; Williams, Lauren K. — 2007 The Electronic Journal of Combinatorics [electronic only]