A partial reimplementation by Somshubra Majumdar (not author), which slightly differs from the original paper, is available at https://gist.github.com/titu1994/26a8a0cd1c1bbf5f2e4c94813dea1e41
If you want to contribute with another review, please follow these instructions.
Please consider to cut/paste/edit the raw JSON data attached to this paper.