@article{ref1,
title="SNAPS (Social Network Analysis Procedures) for GAUSS",
journal="Social networks",
year="1990",
author="Friedkin, Noah E.",
volume="12",
number="2",
pages="173-178",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0378-8733",
doi="10.1016/0378-8733(90)90004-S",
url="http://dx.doi.org/10.1016/0378-8733(90)90004-S"
}