Quasi-particle model of strongly interacting matter
  The successful quasi-particle model is compared with recent lattice data of the coefficients in the Taylor series expansion of the excess pressure at finite temperature and baryon density. A chain of approximations, starting from QCD to arrive at the model expressions for the entropy density, is presented. 
M.Bluhm, B. Kampfer (Rossendorf, Forschungszentrum), G. Soff (Dresden,   Tech. U.)