좀 더 실제 사례로 들어가서 네트워크 분석이 무엇인지 살펴보자 .. http://www.orgnet.com/sna.html
http://www.sfu.ca/~richards/Pages/negopy.htm
Colink Colinked (co-inlink, co-citation ): a link to two different nodes from a third node Colinking (co-outlink, bibliographical coupling): A link from two different nodes to a third node