Prof. Manuel Graña

University Of the Basque Country

Address:
Paseo Manuel Lardizabal 1 Of 307
CP. 20018
San Sebastian, Spain
e-mail: manuel.grana@ehu.es

---

---

Dr. Emilio S. Corchado

University of Salamanca

Address:
Plaza de la Merced, s/n
Faculty of Science
CP. 37008
University of Salamanca
Salamanca, Spain
e-mail: escorchado@usal.es