- Adrian Horia Dediu, Carlos Martín-Vide, Bianca Truthe, Miguel A. Vega-Rodríguez, editors, Theory and Practice of Natural Computing - Second International Conference, TPNC 2013, Cáceres, Spain, December 3-5, 2013, Proceedings. Volume 8273 of Lecture Notes in Computer Science, Springer, 2013.