Fractional charge excitations in fermionic ladders
B. N. Narozhny, S. T. Carr, and A. A. Nersesyan
Phys. Rev. B 71, 161101(R) (2005) - Published 13 April, 2005
Evidence against strong correlation in transition-metal oxides and
Kalobaran Maiti and Ravi Shankar Singh
Phys. Rev. B 71, 161102(R) (2005) - Published 18 April, 2005