Stochastic heterogeneous material modeling for wave propagation in a ballast layerLúcio de Abreu Corrêa, Régis Cottereau, Charles Voivret, Sofia Costa D’Aguiar, Estelle Bongini and Baldrick FaureEPJ Web Conf., 140 (2017) 11012DOI: https://doi.org/10.1051/epjconf/201714011012