/usr/share/doc/libsmartcardpp-dev/AUTHORS is in libsmartcardpp-dev 0.3.0-0ubuntu6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/libsmartcardpp-dev/../libsmartcardpp1/AUTHORS
/usr/share/doc/libsmartcardpp-dev/../libsmartcardpp1/AUTHORS