As noted in the article, a summary of this document (about one-third the length) from the same authors is available at http://www.cl.cam.ac.uk/~pes20/cerberus/n

As noted in the article, a summary of this document (about one-third the length) from the same authors is available at http://www.cl.cam.ac.uk/~pes20/cerberus/notes51-2015-06-21-survey-short.html http://www.cl.cam.ac.uk/~pes20/cerberus/notes51-2015-06-21-s...