Ortigosa, E. M., L. F. Romero, and J. I. Ramos. 2001. “Parallel Simulation of Spiral Waves in Reacting and Diffusing Media”. Acta Cybernetica 15 (2), 173-84. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3572.