Maria Jose Dominguez Vazquez, Xavier Gomez Guinovart, Carlos Valcarcel Riveiro; Contributions by Maria Dolores Sanchez Palomino, Maria Jose Dominguez Vazquez
Felix Cordoba Rodriguez, Ernesto Gonzalez Seoane, Maria Dolores Sanchez Palomino; Contributions by Maria Dolores Sanchez Palomino, Maria Jose Dominguez Vazquez