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Snieder, R. (author), Wapenaar, C.P.A. (author), Larner, K. (author)Seismic interferometry is a technique for estimating the Green's function that accounts for wave propagation between receivers by correlating the waves recorded at these receivers. We present a derivation of this principle based on the method of stationary phase. Although this derivation is intended to be educational, applicable to simple media...journal article 2006