From Quark-Gluon Universe to Neutrino Decoupling: 200<T<2MeV
  The properties of the quark and hadron Universe are explored. Kinetic theory
considerations are presented proving that hadron abundances after phase
transformation from quarks to hadrons remain intact till abundances of hadrons
become irrelevant. The hadronization process and the evolution of hadron yields
is described in detail.
