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We discuss, how planned measurements at KLOE-2 of the (pi^0 -> gamma gamma)decay width and the (gamma^* gamma -> pi^0) transition form factor can improveestimates for the numerically dominant pion-exchange contribution to hadroniclight-by-light scattering in the muon g-2 and what are the limitations relatedto the modelling of the off-shellness of the pion.

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Hadronic light-by-light scattering in the muon g-2: impact of proposed  measurements of the (pi^0 -> gamma gamma) decay width and the (gamma^* gamma  -> pi^0) transition form factor with the KLOE-2 experiment