script to make tree based on citation groups
renamed file and small example
added comments, move example to docstring
fully qualified function name in example

this depends on how the import is done, but this ways assumes it's the simplest "import citationTrees"
include imports in example
Merge pull request #1 from mchelen/patch-1

improved example in doc string
added next level when paper is cited more 2 or more times in same article
edited comments
Merge remote-tracking branch 'upstream/master'
added labels, updated example in docstring
example in its own script
Merge pull request #5 from adasilva/citationtrees

Yup, that's exactly why there aren't many second-level citations. As we add more into the database, this will change...