An optimum PML for scattering problems in the time domainAxel Modave, Abelin Kameni, Jonathan Lambrechts, Eric Delhez, Lionel Pichon and Christophe GeuzaineEur. Phys. J. Appl. Phys., 64 2 (2013) 24502DOI: https://doi.org/10.1051/epjap/2013120447