Amat, Sergio
Li, Zhilin
Ruiz, Juan
Funding for this research was provided by:
Fundación Séneca (19374/PI714)
Ministerio de Economía, Industria y Competitividad (ES) (MTM2015-64382-P)
Fundación Séneca (Beca Jiménez de la Espada)
National Science Foundation (DMS-1522768)
Article History
Received: 22 December 2016
Revised: 25 October 2017
Accepted: 31 October 2017
First Online: 8 November 2017