Hadron resonances with coexistence of different naturesAtsushi Hosaka, Tetsuo Hyodo, Daisuke Jido, Hideko Nagahiro, Kanabu Nawa, Shunsuke Ohkoda, Sho Ozaki, Yasuhiro Yamaguchi and Shigehiro YasuiEPJ Web of Conferences, 20 (2012) 01005DOI: https://doi.org/10.1051/epjconf/20122001005