  We present a systematic technique to expand the Einstein-Hilbert Lagrangian
in inverse powers of the speed of light squared. The corresponding result for
the non-relativistic gravity Lagrangian is given up to next-to-next-to-leading
order. The techniques are universal and can be used to expand any Lagrangian
theory whose fields are a function of a given parameter.

General Relativity and Quantum Cosmology;High Energy Physics - Theory