Mantilla-Soler, Guillermo http://orcid.org/0000-0001-8204-803X
Rivera-Guaca, Carlos
Article History
Received: 8 January 2020
Accepted: 25 August 2020
First Online: 31 August 2020
Acknowledgements
: We would like to thank the referee for the careful reading of the paper, and for their helpful comments.