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We consider the impact of O(alpha^2) hadronic corrections to the energyspectrum of the decay electron in muon decay. We find that the correction canbe described, within good approximation, by a linear function in the electronenergy. Explicit expressions for the form factors needed in an approach basedon dispersion integrals are given.Comment: 12 pages Latex with 4 figure

Hadronic corrections at ${\cal O}(\alpha^2)$ to the energy spectrum of muon decay