Traag, V. A. http://orcid.org/0000-0003-3170-3879
Waltman, L. http://orcid.org/0000-0001-8249-1752
van Eck, N. J. http://orcid.org/0000-0001-8448-4521
Article History
Received: 20 November 2018
Accepted: 11 March 2019
First Online: 26 March 2019
Competing Interests
: The authors act as bibliometric consultants to CWTS B.V., which makes use of community detection algorithms in commercial products and services.