Marek Kwiatkowski Ian Stark The Continuous pi-Calculus: A Process Algebra for Biochemical Modelling. 103-122 2008 CMSB http://dx.doi.org/10.1007/978-3-540-88562-7_11 conf/cmsb/2008 db/conf/cmsb/cmsb2008.html#KwiatkowskiS08