This project uses GIT to manage its source code. Instructions on GIT use can be found at http://git-scm.com/documentation.
The source can be checked out anonymously from GIT with this command (See http://git-scm.com/docs/git-clone):
$ git clone git@github.com:m-m-m/mmm.git/mmm-l10n/mmm-l10n-de
Only project developers can access the GIT tree via this method (See http://git-scm.com/docs/git-clone).
$ git clone git@github.com:m-m-m/mmm.git/mmm-l10n/mmm-l10n-de