<p>Electronic supplementary material to:</p><p>Q-measures and betweenness centrality in a collaboration network: A case study of the field of informetrics</p><p>Authors: Raf Guns <[email protected]>, Yuxian Liu <[email protected]> (corresponding author), Dilruba Mahbuba <[email protected]></p><p>Journal: Scientometrics</p><p>This supplementary document contains full-color visualizations of the collaboration network in the entire period (1990–2009) as well as in each of the time-sliced networks (1990–1994, 1995–1999, 2000–2004, and 2005–2009). All visualizations are made with Pajek.</p><p>Legend: colors used for each country in the visualizations</p><p>1 Network in entire period (1990–2009)</p><p>Network in period 1990–1994</p><p>2 Network in period 1995–1999</p><p>Network in period 2000–2004</p><p>3 Network in period 2005–2009</p><p>4 Relative share of total QG per country in the time-sliced networks</p><p>5</p>