1. F. M. C. Fourier,Théorie Analytique de la Chaleur, Paris (1822), also:Analytical Theory of Heat, Great Books of the Western World, Vol. 45, Encyclopedia Britannica, Inc., Chicago-London-Toronto (1952).
2. J. M. C. Duhamel, “Second mémoire sur les phénoménes thermo-mécaniques,”J. de l'Ecole Polytechnique,15, 1–57 (1837).
3. A. Fick, “Über Diffusion,”Ann. Phys.,94, 59–86 (1855).
4. J. C. Maxwell, “On the dynamic theory of gases,”Phil. Trans. Roy. Soc. London,157, 49–88 (1867).
5. L. Dufour,Arch. Sci. Phys. Nat., Genéve,45, 9 (1872).