Cardoso, J. L. http://orcid.org/0000-0002-7418-3634
Funding for this research was provided by:
Portuguese funds through Fundação para a Ciência e a Tecnologia (UID/MAT/00013/2013)
Article History
Received: 7 May 2019
Accepted: 26 August 2019
First Online: 17 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.