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

First Page		Document Content
Date: 2015-04-19 20:15:33		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 Source URL: www.dtc.umn.edu Download Document from Source Website File Size: 289,56 KB Share Document on Facebook