@article{Watts2002,
author = {Watts, D.J. and Dodds, P.S. and Newman, M.E.J.},
title= {Idendity and search in social networks},
year = {2002},
doi = {10.1126/science.1070120},
journal = {Science},
volume = {296},
number = {5571},
pages = {1302--1305},
}