@InProceedings{exter_memor_graph_traver:00,
  author = 	 {A.~Buchsbaum and M.~Goldwasser and S.~Venkatasubramanian and J.~Westbrook},
  title = 	 {On External Memory Graph Traversal},
  booktitle = 	 {Proc. 11th ACM-SIAM Symposium on Discrete Algorithms},
  year =	 2000
}