A. Fridman, G. Maurer, A. Michalon, J. Oudet, B. Schiby, et al.. Antiproton-proton annihilation into six charged pions and resonance production in the $\overline{p}p \rightarrow 3\pi^+3\pi^-\pi^0$ channel at 5.7 GeV/c.
Physical Review, American Physical Society (APS), 1968, 167, pp.1268.
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