N. Cardoso, and P. Bicudo. (2011)cite arxiv:1111.1317Comment: results improved, 5 pages, 6 figures, 1 table, work partly done under the PTQCD collaboration.
C. Morningstar. (2007)cite arxiv:hep-lat/0702020Comment: 77 pages, 20 figures, lectures given at the 21st annual Hampton University Graduate Studies (HUGS) Program at Jefferson Lab, Newport News, VA, June 5-23, 2006.