サルでもわかるGit入門
http://www.backlog.jp/git-guide/
A successful Git branching model
en – http://nvie.com/posts/a-successful-git-branching-model/
ja – http://keijinsonyaban.blogspot.jp/2010/10/successful-git-branching-model.html
ko – http://dogfeet.github.io/articles/2011/a-successful-git-branching-model.html