XRootD Third Party Copy for the WLCG and HLLHC T Adye, B Bockelman, K Ellis, O Freyermuth, F Furano, G Ganis, A Hanushevsky, H Ito, I Johnson, O Keeble et al. (10 more) EPJ Web Conf., 245 (2020) 04034 Published online: 16 November 2020 DOI: 10.1051/epjconf/202024504034