The recovery of General Relativity in massive gravity via the Vainshtein
  mechanism
  We study in detail static spherically symmetric solutions of non linear
Pauli-Fierz theory. We obtain a numerical solution with a constant density
source. This solution shows a recovery of the corresponding solution of General
Relativity via the Vainshtein mechanism. This result has already been presented
by us in a recent letter, and we give here more detailed information on it as
well as on the procedure used to obtain it. We give new analytic insights upon
this problem, in particular for what concerns the question of the number of
solutions at infinity. We also present a weak field limit which allows to
capture all the salient features of the numerical solution, including the
Vainshtein crossover and the Yukawa decay.
