"Exact" solution of shu-osher test case
 

The Shu-Osher test case is one of the standard problems for compressible flows, see

http://flash.uchicago.edu/~jbgallag/...00000000000000

Most papers show an "exact solution" which is a numerical solution on a very fine mesh computed with a well tested method. Does anybody have such a solution so I can compare with it ?