Most Popular Contents Requested by Users in Different Wikipedia Editions. - Antonio J. Reinoso; Juan Ortega-Valiente; Rocío Muñoz-Mansilla; Carlos León (KEOD, 2012)

Visitors and Contributors in Wikipedia. - Antonio J. Reinoso; Juan Ortega-Valiente; Rocío Muñoz-Mansilla; Gabriel Pastor (KDIR, 2012)