“Truncated Hadamard-Babich Ansatz and Fast Huygens Sweeping Methods for Time-Harmonic Elastic Wave Equations in Inhomogeneous Media in the Asymptotic Regime”. Minimax Theory and Its Applications, vol. 8, no. 1, Aug. 2023, pp. 171–212, http://journalmta.com/index.php/jmta/article/view/147.