PT Unknown AU Rupp, P Elsner, P Weidenmann, KA TI Material selection for CFRP-aluminium-foam-sandwiches manufactured by a PUR spraying process SE 21st Symposium on Composites, 2017; Bremen; Germany; 5 July 2017 through 7 July 2017 PY 2017 BP 317 EP 324 VL 742 KEM DI 10.4028/www.scientific.net/KEM.742.317 LA english ER