@article{articled53cb7eb,
title   = {Concentric characterization and classification of complex network nodes: application to an institutional collaboration network},
author = {Costa, Luciano da Fontoura and Tognetti, Marilza Aparecida Rodrigues and Silva, Filipi Nascimento},
year = {2008},
doi = {10.1016/j.physa.2008.06.034},
journal   = {Physica A}
}