In Serna, you can insert different types of references in DITA documents and edit them fast using DITA dialogs.
Inserting References
Editing References
All editions of Serna support DITA. However, DITA usability tools (DITA dialogs available through the DITA menu and the DITA toolbar), which facilitate the insertion of common DITA constructs, and reference navigation are available in Serna Enterprise Edition only. Download a free trial of Serna Enterprise at http://www.syntext.com/downloads/serna/.