Hard squares with negative activity
Journal of Physics A: Mathematical and Theoretical IOP Publishing 38:2 (2005) 315
Non-local spacetime supersymmetry on the lattice
Journal of Physics A: Mathematical and Theoretical IOP Publishing 37:38 (2004) 8937
Topological order and conformal quantum critical points
Annals of Physics Elsevier 310:2 (2004) 493-551