1. Professor, Dept. of Applied Mathematics and Computational Sciences, Univ. of Cantabria, Avda. Castros s/n, 39005 Santander, Spain.
2. Professor, Grupo de Puertos y Costas, CEAMA, Univ. of Granada, Avda. del Mediterráneo s/n, 18071 Granada, Spain.
3. Assistant Professor, Dept. of Applied Mathematics, Univ. of Castilla–La Mancha, 13071 Ciudad Real, Spain.
4. Assistant Professor, Grupo de Puertos y Costas, CEAMA, Univ. of Granada, Avda. del Mediterráneo s/n, 18071 Granada, Spain.