The Legacy of M. P. Bronstein: on relativistic wave equations for spin 2   fields and some comments
  We briefly give a very simple picture about one of the most remarkable results of Matvej Petrovich Bronstein concerning the quantization of the gravitational waves showing also that the linearized Einstein equations of the paper: Phys.Rev. D65 (2002) 104005 are the same Bronstein's equations given 66 years before. 
Diego Julio Cirilo-Lombardo
physics.hist-ph gr-qc hep-th