Michael Backes Anupam Datta Ante Derek John C. Mitchell Mathieu Turuani Compositional analysis of contract-signing protocols. 33-56 2006 367 Theor. Comput. Sci. 1-2 http://dx.doi.org/10.1016/j.tcs.2006.08.039 db/journals/tcs/tcs367.html#BackesDDMT06