Sources for the article, including the datasets used and functions that can reproduce the results, are available as part of the stemmatology package. It can be found on Github: https://github.com/Jean-Baptiste-Camps/stemmatology

Be aware that this is not the original prototype, used for the article. This prototype isn’t very usable. If you wish nonetheless to have a look at the original Perl scripts and datasets, they are archived on Zenodo:

Camps, Jean-Baptiste. Sources and Perl scripts for the Poole-Camps-Cafiero Stemmatological Algorithm, 2015, Zenodo. http://doi.org/10.5281/zenodo.1098058