TY - RPRT TI - An implicit FFT-based method for wave propagation in elastic heterogeneous media AU - Sancho, R. AU - Rey-de-Pedraza, V. AU - Lafourcade, P. AU - Lebensohn, R. A. AU - Segurado, J. (ORCID:0000000150553736) PY - 2023 DO - 10.1016/j.cma.2022.115772 UR - https://www.osti.gov/biblio/1922565 ID - 1922565 ER -