ZVON > References > XLINK Reference
[Help] 
Go to standard 
Element: <simple>
attributes: type href role arcrole title show actuate
Standard excerpt:
A simple link is a link that associates exactly two resources, one local and one remote, with an arc going from the former to the latter.
Examples (xlink:xml): [1] [2] [3] [4] [5] [6] [7] [8]