López-Polín, Guillermo
Gómez-Navarro, Cristina
Parente, Vincenzo
Guinea, Francisco
Katsnelson, Mikhail I.
Pérez-Murano, Francesc
Gómez-Herrero, Julio
Article History
Received: 24 June 2014
Accepted: 10 November 2014
First Online: 15 December 2014
Competing interests
: The authors declare no competing financial interests.