@article{Leskovec-2007-evolution,
  doi = {10.1145/1217299.1217301},
  url = {https://doi.org/10.1145/1217299.1217301},
  year  = {2007},
  publisher = {Association for Computing Machinery ({ACM})},
  volume = {1},
  number = {1},
  author = {Jure Leskovec and Jon Kleinberg and Christos Faloutsos},
  title = {Graph evolution: Densification and shrinking diameters},
  journal = {{ACM} Transactions on Knowledge Discovery from Data}
}