The Study of chiral restoration using the quark gluon mixed condensate g < q σ(mu nu) G(mu nu) q > in lattice QCD at finite temperature - Doi, Takumi; Ishii, Noriyoshi; Oka, Makoto; Suganuma, Hideo (International Conference on Color Confinement and Hadrons in Quantum Chromodynamics - Confinement 2003, 2003)