I did locate all three of the documents you cite. My read of the article (as well as a mention in the original paper you linked to) makes specific reference to entries (200 of them) in the MIT Process Handbook. I am most interested in them.
Some comments in the articles appear to draw a distinction between the research oriented Process Handbook and a more "public" one. References to both appear to land in the same place (http://ccs.mit.edu/ph/
Also, there is a "Logout" link on the MIT Process Handbook but no corresponding "Login". I wonder if that is a factor.