I'm looking for a word to describe the concept of referencing or the act of referencing.
I'm configuring an issue tracking system that allows linking issues. A link is a pair of issues. These links can be configured to be of different types. This is useful to describe the meaning of a particular link – a link alone is too vague. For example, there is a link type called "Causality", with inward and outward relations defined as "A caused B" and "B is caused by A". Another link type is "Relation" which is a symmetric relation defined as "A is related to B" and "B is related to A". I need a link type name for "A references B".
Typically the word reference refers (at least, in my experience based on a programming background) to a specific reference and not the concept of referencing. For example: "variable x is a reference to value v" or "x references v". When I hear the word reference I assume an implicit "a", like "walk" as a noun seems to mean "a walk" and not the act of walking itself.
Is the act of referencing best called "reference"? Referentiality? Referenceness? Is there anything better/more appropriate than these terms?