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An erratum to this article can be found online at http://dx.doi.org/10.1007/BF02392540.
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Jayne, J.E., Rogers, C.A. Upper semi-continuous set-valued functions. Acta Math. 149, 87–125 (1982). https://doi.org/10.1007/BF02392351
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DOI: https://doi.org/10.1007/BF02392351