1. Small groups as complex systems: Formation, coordination, development and adaptation;Arrow,2000
2. Trajectories of collaboration and competition in a medical discovery;Atkinson;Science, Technology and Human Values,1998
3. Feature report: Reflections on scientific collaboration (and its study);Beaver;Scientometrics,2001
4. Birnholtz, J. P. (2005). When do researchers collaborate? Toward a model of Collaboration propensity in science and engineering research. Unpublished PhD thesis, University of Michigan.
5. Explaining the rise of anti-immigrant parties: The role of news media content;Boomgarden;Electoral studies,2007