1. Stanford network analysis platform dataset. http://www.cise.uïňĆ.edu/research/sparse/matrices/SNAP. Stanford network analysis platform dataset. http://www.cise.uïňĆ.edu/research/sparse/matrices/SNAP.
2. The University of Florida Sparse Matrix Collection. http://www.cise.ufl.edu/research/sparse/matrices/. The University of Florida Sparse Matrix Collection. http://www.cise.ufl.edu/research/sparse/matrices/.
3. Diameter of the World-Wide Web
4. Group formation in large social networks