Open Problem Garden - pushing disks - Comments http://openproblemgarden.org/category/pushing_disks Comments for "pushing disks" en pushing disks http://openproblemgarden.org/category/pushing_disks <br /> http://openproblemgarden.org/category/pushing_disks#comment Thu, 25 Sep 2008 02:31:46 +0200 2092 at http://openproblemgarden.org