Beam polarization effects on top-pair production at the ILC Nhi M. U. Quach, Yoshimasa Kurihara, Khiem H. Phan and Takahiro Ueda Eur. Phys. J. C, 78 5 (2018) 422 Published online: 28 May 2018 DOI: 10.1140/epjc/s10052-018-5895-9