Quality control for the first large areas of triple-GEM chambers for the CMS endcaps D. Abbaneo, M. Abbas, M. Abbrescia, M. Abi Akl, O. Aboamer, D. Acosta, A. Ahmad, W. Ahmed, A. Aleksandrov, P. Altieri et al. (141 more) EPJ Web Conf., 174 (2018) 03003 Published online: 21 February 2018 DOI: 10.1051/epjconf/201817403003