Costa, João L. http://orcid.org/0000-0002-2087-2389
Girão, Pedro M. http://orcid.org/0000-0001-6799-9478
Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (PTDC/MAT-ANA/1275/2014, UID/MAT/04459/2013)
Article History
Received: 20 March 2019
Revised: 20 March 2019
Accepted: 31 July 2020
First Online: 26 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.