A unique parameterization of the QCD equation of state below and above   T_c
  We present a unique parameterization of the equation of state of strongly interacting matter in the temperature interval 0.6 T_c ... 3 T_c at \mu = 0 within a quasi-particle model based on quark and gluon degrees of freedom. The extension to non-vanishing baryon-chemical potential is discussed. 
M. Bluhm, B. Kampfer, G. Soff