/usr/share/doc/gstreamer0.10-plugins-base-dbg/AUTHORS is in gstreamer0.10-plugins-base-dbg 0.10.36-1.1ubuntu2.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/gstreamer0.10-plugins-base-dbg/../libgstreamer-plugins-base0.10-0/AUTHORS