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2. S.R. de Groot and P. Mazur, Non-equilibrium Thermodynamics, Dover Publications Inc., New York, 1954.
3. I. Prigogine, Introduction to Non-equilibrium Thermodynamics, Wiley-Interscience, New York, 1962.
4. I. Gyarmati, Non-equilibrium Thermodynamics: Field Theory and Variational Principles, Springer, Berlin-Heidelberg-New York, 1970.
5. J. Meixner and H.G. Reik “Thermodynamik der irreversiblen Prozesse” in Handbuch der Physik, S. Flügge ed., Springer-Verlag, Berlin, 1959, Vol. III/2.