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The η puzzle and the δI = 1 electromagnetic-mass differences in colour gauge theories of strong interactions

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Lettere al Nuovo Cimento (1971-1985)

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Marcolungo, P. The η puzzle and the δI = 1 electromagnetic-mass differences in colour gauge theories of strong interactions. Lett. Nuovo Cimento 14, 131–134 (1975). https://doi.org/10.1007/BF02745701

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