* [Heap Architectures For Concurrent Languages Using Message Passing](http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.108.1302&rep=rep1&type=pdf)
* [Message Analysis for Concurrent Languages](http://user.it.uu.se/~kostis/Papers/escape.pdf)
* [The Semantics of x86-CC Multiprocessor Machine Code](http://www.cl.cam.ac.uk/~pes20/weakmemory/popl09.pdf)
*Note: This contribution here is the focus on the rigorous semantics for x86 multiprocessor programs and an axiomatic definition of the memory model. Their definitions and proofs are backed by the [HOL](http://en.wikipedia.org/wiki/HOL_(proof_assistant))(Higher Order Logic) proof assistant.*