1. Kadanoff, L.: Physics2, 263 (1966) Wilson, K.: Phys. Rev. B4, 1374, 3184 (1971) Wegner, F.J.: Phys. Rev. B5, 4529 (1972)
2. Haken, H.: In: Cooperative Effects, Progress in Synergetics, ed. H. Haken. Amsterdam: North Holland 1974 Haken, H.: Rev. Mod. Phys.47, 67 (1975)
3. Graham, R., Haken, H.: Z. Physik213, 420 (1968);237, 31 (1970) Haken, H.: Encyclopedia of Physics, Vol. XXV/2c. New York: Springer 1970
4. Chandrasekhar: Hydrodynamic and Hydromagnetic Stability Oxford: Clarendon 1961 Newell, A., Whitehead, J.: J. Fluid Mech.38, 279 (1969) Graham, R.: Phys. Rev. Lett.31, 1479 (1973); Phys. Rev.10, 1762 (1974) Haken, H.: Phys. Lett. A46, 193 (1974); Rev. Mod. Phys. January 1975
5. Glansdorff, P., Prigogine, J.: Structure, Stability and Fluctuations. New York: Wiley Interscience 1971 Nicolis, G.: In: Cooperative Effects, Progress in Synergetics, ed. H. Haken. Amsterdam: North Holland 1974 Haken, H.: Z. Physik B21, 105 (1975)