Fig. 2
From: Cities and countries in the global scientist mobility network
PageRank ranking evolution from 1998 to 2004 for the top 40 cities as observed in the 2004 mobility network
Fig. 2 | Applied Network Science
From: Cities and countries in the global scientist mobility network
PageRank ranking evolution from 1998 to 2004 for the top 40 cities as observed in the 2004 mobility network