If you present a paper at WG 2013 and want to meet the early registration deadline of May 15, we offer you to send a revised version of your paper to ke [at] informatik [dot] uni-rostock [dot] de until June 03.
Nevertheless, please provide the current version of your paper in the registration process.
This only affects the version that is distributed to the participants of WG 2013. For LNCS, the camera ready version deadline is unchanged July 30.