Garrappa, Roberto http://orcid.org/0000-0002-7881-0885
Popolizio, Marina http://orcid.org/0000-0003-0474-2573
Funding for this research was provided by:
INdAM (Project GNCS 2017)
Article History
Received: 5 June 2017
Revised: 13 March 2018
Accepted: 16 March 2018
First Online: 22 March 2018