Comments on conformal masses, asymptotics backgrounds and conservation   laws
  The "conformal mass prescriptions" were used recently to calculate the mass of spacetimes in higher dimensional and higher curvature theories of gravity. These definitions are closely related to Komar integrals for spacetimes that are conformally flat at great distances from the sources. We derive these relations without using the conformal infinity formalism. 
Nathalie Deruelle and Joseph Katz