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"The Confrontation between General Relativity and Experiment"
Clifford M. Will 
Equation Icon  ∫ [ ] ( ) I&tidle;= (16 πG )−1 &tidle;R − 2 &tidle;gμν∂μφ∂ νφ − V (φ) (− &tidle;g)1∕2d4x + Im ψm, A2 (φ)&tidle;gμν , (33 )