Numerical modeling of seismic waves by discontinuous spectral element methodsPaola F. Antonietti, Alberto Ferroni, Ilario Mazzieri, Roberto Paolucci, Alfio Quarteroni, Chiara Smerzini and Marco StupazziniESAIM: ProcS, 61 (2018) 1-37DOI: https://doi.org/10.1051/proc/201861001