Wikimore

Summary

Description	Deutsch: On April 20th, 2001, David Applegate, Robert Bixby, Vašek Chvátal, and William Cook announced the solution of a traveling salesman problem through 15,112 cities in Germany. Source: https://www.math.uwaterloo.ca/tsp/d15sol/index.html
Date	1 May 2013
Source	https://www.math.uwaterloo.ca/tsp/d15sol/img/d15map.gif
Author	Prof. William Cook

The information and the picture is taken from here: https://www.math.uwaterloo.ca/tsp/d15sol/index.html

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