Macías-Ramos, L. F., Pérez-Hurtado I., García-Quismondo M., Valencia-Cabrera L., Pérez-Jiménez M. J., & Riscos-Núñez A.  (2012).??A P-Lingua based simulator for Spiking Neural P systems.  Lecture Notes in Computer Science. 7184, 257-281.