source
http://vlado.fmf.uni-lj.si/pub/networks/pub/data/UciNet/UciData.htm#newfratLicenses and Citation
If the source of the data set does not specified otherwise,
this data set is protected by the Creative Commons License
http://creativecommons.org/licenses/by-nc-nd/2.5/.
When publishing results obtained using this data set the original authors
should be cited. In addition this package should be cited as:
Mark S. Handcock, David Hunter, Carter T. Butts, Steven M. Goodreau,
and Martina Morris. 2003
statnet: An R package for the Statistical Modeling of Social Networks
http://www.csde.washington.edu/statnet
and the source should be cited as:
Vladimir Batagelj and Andrej Mrvar (2006): Pajek datasets
http://vlado.fmf.uni-lj.si/pub/networks/data/