An Accelerated Newton Method for Equations with Semismooth Jacobians and Nonlinear Complementarity Problems,
with Stephen J. Wright. Mathematical Programming: Series A and B 117 Issue 1, July 2008, 355-386. pdf

Extended version of the above paper. Optimization Technical Report 07-01, University of Wisconsin-Madison, January 2007. pdf

Active Constraint Identification in Nonlinear Programming, with Stephen J. Wright. SIAM Journal on Optimization 17 (2006), 577-605. pdf