You can find the official and relevant PDF at http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/50728
The code and all files are published with a CreativeCommons license (CC BY-SA 3.0).
You can build this code with running make. However, since I did not
release all the relevant bibtex files, it will likely not build without
errors. But you get a first glance.