Bel, Andrea
Rotstein, Horacio G. http://orcid.org/0000-0002-4387-5160
Funding for this research was provided by:
Directorate for Mathematical and Physical Sciences (1608077)
Universidad Nacional del Sur (PGI 24/L096)
Article History
Received: 2 October 2018
Revised: 21 January 2019
Accepted: 25 January 2019
First Online: 20 March 2019