Larisa Beilina and Michael V. Klibanov
A globally convergent numerical method and the adaptivity technique for a 
 hyperbolic coefficient inverse problem. Part II: numerical studies.
(1470K, pdf)

ABSTRACT.  In this second part of the paper numerical experiments are presented. 
They show that a globally convergent numerical method provides 
a good starting point for the finite 
 element adaptive method 
(adaptivity). This leads to a natural two-stage 
 numerical procedure, 
which synthesizes both these methods.