:* coreness<ref name='coreness'>{{Cite conference| publisher = IEEE| doi = 10.1109/CCDC.2008.4598241| isbn = 978-1-4244-1733-9| conference = 2008 Chinese Control and Decision Conference (CCDC)| pages = 4803–4808| last1 = Jun Zhang| last2 = Hai Zhao| last3 = Yan Zhou| title = The study on characteristics of the coreness of router-level internet nodes| location = Yantai, Shandong, China| year = 2008| url = http://ieeexplore.ieee.org/document/4598241/}}</ref>:一个节点如果属于k-shell, 该节点的coreness为k | :* coreness<ref name='coreness'>{{Cite conference| publisher = IEEE| doi = 10.1109/CCDC.2008.4598241| isbn = 978-1-4244-1733-9| conference = 2008 Chinese Control and Decision Conference (CCDC)| pages = 4803–4808| last1 = Jun Zhang| last2 = Hai Zhao| last3 = Yan Zhou| title = The study on characteristics of the coreness of router-level internet nodes| location = Yantai, Shandong, China| year = 2008| url = http://ieeexplore.ieee.org/document/4598241/}}</ref>:一个节点如果属于k-shell, 该节点的coreness为k |