@article{JGAA_2004_8_1_a3,
     author = {David Eppstein and Joseph Wang},
     title = {Fast {Approximation} of {Centrality}},
     journal = {Journal of Graph Algorithms and Applications},
     pages = {39--45},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2004},
     doi = {10.7155/jgaa.00081},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00081/}
}