Έλσα, νομίζω referent ≠ reference.
referent
1. the object or event to which a term or symbol refers.
2. Logic. the first term in a proposition to which succeeding terms relate.
reference
1. an act or instance of referring.
2. a mention; allusion.
3. something for which a name or designation stands; denotation.
4. a direction in a book or writing to some other book, passage, etc.
5. a book, passage, etc., to which one is directed.
6. See reference mark (def. 2).
7. material contained in a footnote or bibliography, or referred to by a reference mark.
8. use or recourse for purposes of information: a library for public reference.
9. a person to whom one refers for testimony as to one's character, abilities, etc.
10. a statement, usually written, as to a person's character, abilities, etc.
11. relation, regard, or respect: all persons, without reference to age.