1. Wikipedia: The Misssing Manual;Broughton,2008
2. Value production in a collaborative environment;Yasseri;J. Stat. Phys.,2013
3. The sum of all human knowledge: A systematic review of scholarly research on the content of Wikipedia;Mesgari;Adv. Inf. Sci.,2014
4. https://en.wikipedia.org/wiki/Wikipedia:Database_download.
5. Circadian patterns of Wikipedia editorial activity: A demographic analysis;Yasseri;PLoS ONE,2012