About the Authors
- M. Ángeles Serrano
- Departament de Química Física, Universitat de Barcelona, Barcelona, Spain
- Alessandro Flammini, Filippo Menczer
- School of Informatics, Indiana University, Bloomington, Indiana, United States of America
- Filippo Menczer
- Complex Networks Lagrange Lab, ISI Foundation, Torino, Italy
The authors have declared that no competing interests exist.
Designed research, performed research, analyzed data, and wrote the paper: MAS AF FM.