Funding for this research was provided by:
Ministerio de Economía, Industria y Competitividad, Gobierno de España (AGL2017-85030-R)
DGA-FSE (A07_17R)
Article History
Received: 14 October 2018
Revised: 1 April 2019
Accepted: 3 June 2019
First Online: 4 July 2019
Free to read: This content has been made available to all.