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In this paper, we treat the inverse problem of determining two time-dependentcoefficients appearing in a dissipative wave equation, from measured Neumannboundary observations. We establish in dimension $n\geq 2$, stability estimateswith respect to the Dirichlet-to-Neumann map of these coefficients providedthat are known outside a cloaking regions. Moreover, we prove that it can bestably recovered in larger subsets of the domain by enlarging the set of data

Stable determination outside a cloaking region of two time-dependent coefficients in an hyperbolic equation from Dirichlet to Neumann map