title: Reciprocity Mechanisms meet together. A previous step to bridge the gap with experiments?: Comment on "Universal scaling for the dilemma strength in evolutionary games", by Z. Wang, et al.
authors.affiliation: Department of Condensed Matter Physics, University of Zaragoza, 50009 Zaragoza, Spain; Institute for Biocomputation and Physics of Complex Systems, University of Zaragoza, 50018 Zaragoza, Spain. Electronic address: gardenes@gmail.com.
authors.forename: Jesús
authors.initials: J
authors.lastname: Gómez-Gardeñes
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005716:Game Theory; D006801:Humans