Retrieve and store PDF files via a bibtex file and Git-repository.

• Create a setup.py. This way, the repository would not need the git submodule, but could work as an ordinary script within the current working directory.

• Compare to bibtools

• Handlers. I could implement some Handler class, depending on a regular expression of the URL. This way, some websites could be filtered out.

• Integrate with DPLP See dblp-python or the DBLP API.

• Compare to [scholar.py] (Git submodule).