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	The forgotten discovery of gravity models and the inefficiency of early railway networks Andrew Odlyzko School of Mathematics University of Minnesota Minneapolis, MN 55455, USA Add to Reading List Document Date: 2015-04-19 20:15:33 Open Document File Size: 289,56 KB Share Result on Facebook

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The forgotten discovery of gravity models and the inefficiency of early railway networks Andrew Odlyzko School of Mathematics University of Minnesota Minneapolis, MN 55455, USAAdd to Reading List