R. De Pietri, A. Feo, E. Seiler, and I. Stamatescu. (2007)cite arxiv:0710.3102Comment: 7 pages, 5 figures, talk presented at the XXVth International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg, Germany.
A. Hietanen, and R. Narayanan. (2012)cite arxiv:1204.0331Comment: 16 pages, 9 figures, revised version DOES NOT match the published version in Physical Review D.