1. Network flows: Theory, algorithms, and applications;Ahuja,1993
2. Characterizing the citation graph as a self-organizing networked information space;An;Knowledge and Information Systems,2004
3. Linked: How everything is connected to everything else and what it means for business, science, and everyday life;Barabási,2002
4. Reflections on scientific collaborations (and its study): Past, present and prospective;Beaver;Scientometrics,2001
5. Latent dirichlet allocation;Blei;Journal of Machine Learning Research,2003