Combinatorica`
Combinatorica`
GraphCenter
As of Version 10, most of the functionality of the Combinatorica package is built into the Wolfram System. »
GraphCenter[g]
gives a list of the vertices of graph 
with minimum eccentricity.
Details and Options
- GraphCenter functionality is now available in the built-in Wolfram Language function GraphCenter.
- To use GraphCenter, you first need to load the Combinatorica Package using Needs["Combinatorica`"].
Examples
Basic Examples (2)
This function has been superseded by GraphCenter in the Mathematica kernel:
Wolfram Research (2012), GraphCenter, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/GraphCenter.html.
Text
Wolfram Research (2012), GraphCenter, Wolfram Language function, https://reference.wolfram.com/language/Combinatorica/ref/GraphCenter.html.
CMS
Wolfram Language. 2012. "GraphCenter." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/Combinatorica/ref/GraphCenter.html.
APA
Wolfram Language. (2012). GraphCenter. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/Combinatorica/ref/GraphCenter.html