vaio:~# apt-get source liblua5.1-0-dev
Reading package lists... Done
Building dependency tree... Done
Skipping already downloaded file 'lua5.1_5.1.2.orig.tar.gz'
Need to get 12.0kB of source archives.
Get:1 http://http.us.debian.org testing/main lua5.1 5.1.2-4 (dsc) [788B]
Get:2 http://http.us.debian.org testing/main lua5.1 5.1.2-4 (diff) [11.2kB]
Fetched 12.0kB in 0s (37.2kB/s)
Skipping unpack of already unpacked source in lua5.1-5.1.2