1. Lecture Notes in Computer Science;T. Massoni,2008
2. Gheyi, R.: A Refinement Theory for Alloy. PhD thesis, UFPE (2007)
3. Jackson, D.: Software Abstractions: Logic, Language and Analysis. MIT Press, Cambridge (2006)
4. Gheyi, R., Massoni, T., Borba, P.: Formally introducing alloy idioms. In: Brazilian Symposium on Formal Methods, Brazil, pp. 22–37 (2007)
5. Owre, S., et al.: PVS language reference (2007), http://pvs.csl.sri.com