$ git remote add github-atmos git://github.com/atmos/vlad.git
$ git branch -a
* master
  origin/HEAD
  origin/master
$ git checkout -b atmos
Switched to a new branch "atmos"
$ git pull github-atmos atmos
error: no such remote ref refs/heads/atmos
fatal: Fetch failure: git://github.com/atmos/vlad.git
$ git branch -a
* atmos
  master
  origin/HEAD
  origin/master
$ git remote
github-atmos
origin
$ git remote show github-atmos
* remote github-atmos
  URL: git://github.com/atmos/vlad.git
  New remote branches (next fetch will store in remotes/github-atmos)
    master