- Coxeter groups
- Hopf algebras
- (with Marcelo Aguiar) Coxeter groups and Hopf algebras, Fields Institute Monographs, 23, American Mathematical Society, Providence, RI, 2006, xvi+181 pp.
- Quantum groups and differential forms, Comm. Algebra, 33 (2005), no. 1, 253--269.
- Symplectic operad geometry and graph homology, preprint.