Rodrigues, Alexandre A. P. http://orcid.org/0000-0001-8182-9889
Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (IF/00107/2015)
Centro de Matemática Universidade do Porto (UIBD/00144/2020)
Article History
Received: 20 November 2019
Revised: 16 May 2020
First Online: 4 July 2020