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On the topological charge of theO 3 nonlinear σ-model on a lattice

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Lettere al Nuovo Cimento (1971-1985)

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Tataru-Mihai, P. On the topological charge of theO 3 nonlinear σ-model on a lattice. Lett. Nuovo Cimento 32, 105–108 (1981). https://doi.org/10.1007/BF02749377

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