  The presence of a delay in a thermoelastic system destroys the well-posedness
and the stabilizing effect of the heat conduction [17]. To avoid this problem
we add to the system, at the delayed equation, a Kelvin-Voigt damping. At
first, we prove the well-posedness of the system by the semigroup theory. Next,
under appropriate assumptions, we prove the exponential stability of the system
by introducing a suitable Lyapunov functional.
