Tutoriel introduction GIT :
http://all4dev.libre-entreprise.org/index.php/Git#Utiliser_un_serveur_Subversion_avec

Script pour récupérer les externals :
http://github.com/markvl/git-svn-clone-externals

http://stackoverflow.com/questions/907913/there-is-any-way-to-synchronize-git-and-subversion-repositories
http://stackoverflow.com/questions/572893/cloning-a-non-standard-svn-repository-with-git-svn/572898#572898
Git back into Subversion, Mostly Automagically
http://unethicalblogger.com/posts/2008/10/git_back_subversion_mostly_automagically_part_33
Tailor is a tool to migrate changesets between Aegis, ArX, Bazaar?, Bazaar-NG, CVS, Codeville?, Darcs, Git, Mercurial, Monotone, Perforce, Subversion? and Tla?
http://progetti.arstecnica.it/tailor

An introduction to git-svn for Subversion/SVK users and deserters
http://utsl.gen.nz/talks/git-svn/intro.html#yay-nocentre

http://stackoverflow.com/questions/661018/pushing-an-existing-git-repository-to-svn
Exporter git vers svn, méthode Google : http://code.google.com/p/support/wiki/ImportingFromGit
Et Commit a linear git history to subversion : http://brandon.dimcheff.com/2009/01/04/commit-a-linear-git-history-to-subversion.html