Massive spin-2 in the Fradkin-Vasiliev formalism. I. Partially massless   case
  We apply Fradkin-Vasiliev formalism to construction of non-trivial cubic interaction vertices for massive spin-2 particles. In this first paper as a relatively simple but instructive example we consider self-interaction and gravitational interaction of partially massless spin-2. 
Yu. M. Zinoviev
hep-th