Funding for this research was provided by:
Ministerio de Economía y Competitividad (MINECO) and Federación Europea de Desarrollo Regional (AGL2015-63849-C2-1-R and AGL2015-63849-C2-2-R)
Junta and the de Castilla y León/ FEDER (VA072P17)
Article History
Received: 22 April 2019
Accepted: 20 January 2020
First Online: 24 January 2020