Florent Kirchner François-Régis Sinot Rule-Based Operational Semantics for an Imperative Language. 35-47 2007 174 Electr. Notes Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/j.entcs.2006.10.023 db/journals/entcs/entcs174.html#KirchnerS07