aLindorff-Larsen et al. (2005)
bRichter et al. (2007)
cLange et al. (2008)
dFriedland et al. (2009)
eValues from Chou et al. (2003)
fAverage values (with standard deviation) among grid search solutions within 10% of overall minimum
gWithin allowed range of corresponding  value Lee et al. (1999)
hFixed at 1 (no variation in grid search)