Diletta Cacciagrano Flavio Corradini Jesús Aranda Frank D. Valencia Linearity, Persistence and Testing Semantics in the Asynchronous Pi-Calculus. 59-84 2008 194 Electr. Notes Theor. Comput. Sci. 2 http://dx.doi.org/10.1016/j.entcs.2007.11.006 db/journals/entcs/entcs194.html#CacciagranoCAV08