Plunien, G; Müller, B; Greiner, W, *Casimir energy at finite temperature*,
Physica A: Statistical Mechanics and Its Applications, vol. 145 no. 1-2
(1987),
pp. 202-219 .
**Abstract:**

*We derive an integral representation for the temperature corrections to the Casimir effect between perfectly conducting parallel plates placed in the electromagnetic field for arbitrary dimension. The representation has the advantage that dependence upon the external constraints and thermal effects enter separately. The so-called mode sum function carrying the dependence on the boundaries is closely connected with the mode number density which is derived explicitly for the parallel plate configuration. The relation to local Green function methods is also pointed out. © 1987.*