Navarro, Jorge http://orcid.org/0000-0003-2822-915X
Longobardi, Maria http://orcid.org/0000-0002-6772-5167
Pellerey, Franco http://orcid.org/0000-0002-8983-855X
Funding for this research was provided by:
Ministerio de EconomÃa y Competitividad of Spain (MTM2012- 34023-FEDER)
Italian INDAM - Istituto Nazionale Di Alta Matematica
Italian INDAM - Istituto Nazionale Di Alta Matematica