> http://downloads.plkr.org/1.8/plucker_docs-1.8.tar.bz2 ok > http://downloads.plkr.org/1.8/plucker_parser-1.8.tar.bz2 ok > http://downloads.plkr.org/1.8/plucker_viewer-1.8.tar.bz2 ok > http://downloads.plkr.org/1.8/plucker_viewer_extras-1.8.tar.bz2 ok