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PP BACKWARD SCATTERING AND S-CHANNEL RESONANCES: UPPER LIMIT TO THE PP COUPLING OF THE S(1929) MESONBIZZARRI R; GUIDONI P; MARZANO F et al.1972; PHYS. REV., D; U.S.A.; DA. 1972; VOL. 6; NO 1; PP. 160-163; BIBL. 16 REF.Serial Issue

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