Double-winding Wilson loops in SU(N) Yang-Mills theory – A criterion for testing the confinement models – Ryutaro Matsudo, Kei-Ichi Kondo and Akihiro Shibata EPJ Web Conf., 175 (2018) 12002 Published online: 26 March 2018 DOI: 10.1051/epjconf/201817512002