D. Barberis, F G. Binon, F E. Close, K M. Danielsen, S V. Donskov, et al.. A coupled channel analysis of the centrally produced $K^{+}K^{-}$ and $\pi^{+}\pi^{-}$ final states in pp interactions at 450 GeV/C.
Physics Letters B, Elsevier, 1999, 462, pp.462-470.
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