R. Casado-Vara, J. Prieto, and J. Corchado. SOCO-CISIS-ICEUTE, volume 771 of Advances in Intelligent Systems and Computing, page 67-76. Springer, (2018)
I. Santiago, J. Vara, V. de Castro, and E. Marcos. ENASE (Selected Papers), volume 417 of Communications in Computer and Information Science, page 229-240. Springer, (2013)