@Article{lj-rbf,
  author =	 {David Liben-Nowell 
                  and Jasmine Novak
                  and Ravi Kumar
                  and Prabhakar Raghavan
                  and Andrew Tomkins},
  title =	 {Geographic Routing in Social Networks},
  journal = 	 {Proceedings of the National Academy of Sciences},
  year = 	 2005,
  volume =	 102,
  number =	 33,
  pages =	 {11623--11628},
  month =	 aug
}