J. Greensite, K. Langfeld, S. Olejnik, H. Reinhardt, and T. Tok. (2006)cite arxiv:hep-lat/0609050
Comment: 24 pages, 14 figures; v2: references added; v3: published version
containing some additional introductory discussion.
L. Liptak, and S. Olejnik. (2008)cite arxiv:0807.1390
Comment: 14 pages, 12 figures (24 EPS files), RevTeX4. In v2: typos corrected,
discussion of systematic errors and of smearing expanded, references added.
Version to appear in Phys. Rev. D.