@article{Watts_1998,
title={Collective dynamics of ‘small-world’ networks},
volume={393},
ISSN={1476-4687},
url={http://dx.doi.org/10.1038/30918},
DOI={10.1038/30918},
number={6684},
journal={Nature},
publisher={Springer Science and Business Media LLC},
author={Watts,
Duncan J. and Strogatz,
Steven H.},
year={1998},
month=jun,
pages={440–442} }