Silke Eckstein Claudia Täubner An Extendable System for Conceptual Modeling and Simulation of Signal Transduction Pathways. 54-63 2007 conf/er/2007w ER Workshops http://dx.doi.org/10.1007/978-3-540-76292-8_7 db/conf/er/erw2007.html#EcksteinT07