Evidence for two narrow resonances at 2020 MeV and 2200 MeVP. Benkheiri, H. Y. Yoshida, B. Dalmagne et al.|Physics Letters B|1977Cited by 83
General characteristics of the annihilation reaction pp → 3π+ 3π− (π0) at 3.6 GeV/cH. Atherton, T.P. Yiou, W.M.R. Blair et al.|Nuclear Physics B|1970Cited by 20