Source code of the SPiM model. [code] 

Process Modeling and Rendering of Biochemical Structures: Actin.  
Ozan Kahramanoğulları, Andrew Phillips, Federico Vaggi 

Molecular cell biomechanics, 

Lecture Notes in Computational Vision and Biomechanics, Springer, Volume 9, 2013. 

A Process Model of Actin Polymerisation. [PDF]  
Ozan Kahramanoğulları, Luca Cardelli, Emmanuelle Caron, Philippa Gardner, Andrew Phillips
2nd Workshop "From Biology To Concurrency and back", Reykjavik, Iceland, July 12, 2008.
Proceedings of FBTC'08, ENTCS 229(1), Elsevier, 127-144, 2009.