TY - JOUR T1 - A proof that multiple waves propagate in ensemble-averaged particulate materials JO - Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences UR - http://eprints.whiterose.ac.uk/147113/ PY - -0001/11/30 AU - Gower AL AU - Abrahams ID AU - Parnell WJ ED - DO - DOI: 10.1098/rspa.2019.0344 PB - The Royal Society VL - 475 IS - 2229 SP - 20190344 EP - 20190344 Y2 - 2024/12/22 ER -