1. Assigning trust to Wikipedia content;Adler,2008
2. Determinants of Wikipedia quality: The roles of global and local contribution inequality;Arazy,2010
3. The jigsaw classroom: Building cooperation in the classroom;Aronson,1997
4. The equilibrium problem in small groups;Bales,1953
5. Linked: The new science of networks science of networks;Barabási,2002