1. Carlson, D. E., Linear Thermoelasticity. Handbuch der Physik. Bd. V1a/2. Springer-Verlag, Berlin, Heidelberg, New York (1972).
2. Day, W. A., A comment on approximations to the temperature in dynamic linear thermoelasticity. Arch. Rational Mech. Anal. To appear.
3. Day, W. A., Approximations to the temperature in a heated thermoelastic fluid. Mathematika. To appear.
4. Green, J. W., Aspects of the Calculus of Variations. Notes after lectures by Hans Lewy. University of California Press. Berkeley (1939).
5. Levi, E. E., Sull’equazione del calore. Reale Accad. dei Lincei, Roma, Rendiconti (5) 162, 450–456 (1907).