ZVON > References > XLINK Reference
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Element: <locator>
attributes: type href role title label
child elements: title
Standard excerpt:
Elements that address the remote resources participating in the link. An extended link indicates remote resources that participate in it by means of locator elements. The XLink element for locators is any element with an attribute in the XLink namespace called type with a value of "locator". The locator-type element may have any content.
Examples (xlink:xml): [11]