Like a button, a link is a user interface element that you can use to execute an assigned function, such as a reference to a document. The link is represented by a text or an image or both and is usually underlined to show that additional functions can be accessed from the link.
When the link has the focus, you can use [Enter] to activate the link function.
Sequential element navigation works for links, so you can move the focusforwards to a link using [Tab] or backwards using [Shift]+[Tab].
If the link has a tool tip, you can call it up by choosing [Ctrl]+[q].