Atom-scale authentication using a CCD camera User qopto, in the Nanotechnology subreddit, 11 Sep 2017
Using atom-scale imperfections to beat counterfeiting User qopto, in the Nanoscale physics and chemistry subreddit, 11 Sep 2017
Using imperfections in graphene-like materials to beat counterfeiting User qopto, in the Reddit Science subreddit, 11 Sep 2017