Stelio Calabresi is an Italian researcher who has presented a number of papers on various historical mysteries, particularly those of ancient Egypt. Unfortunately, as far as I can ascertain all are only available in Italian.
He has published a comprehensive article(a) about Atlantis on the Edicola website in which he reviews the whole spectrum of Atlantis theories, including an extensive bibliography. At the end of it all, I think that it is fair to describe Calabresi as a slightly reluctant sceptic regarding the existence of Atlantis.
Although his article is in Italian, it translates well into English.