Authors
Begoña Cantó
Institute for Multidisciplinary Mathematics Technical University of Valencia, Camino de Vera, 14, 46022, Valencia, Spain
Carmen Coll
Institute for Multidisciplinary Mathematics Technical University of Valencia, Camino de Vera, 14, 46022, Valencia, Spain
Elena Sánchez
Institute for Multidisciplinary Mathematics Technical University of Valencia, Camino de Vera, 14, 46022, Valencia, Spain