@article{Ngo:2014j2, author = "Ngo, Xiem Thi Hong and Shinmura, Shoji", title = "{Roles of $\eta $-channels in $\pi \pi $, $\pi \eta$ and $\pi K$ scatterings}", doi = "10.22323/1.205.0145", journal = "PoS", year = 2014, volume = "Hadron 2013", pages = "145" }