This page provides access points to BC's subscriptions to reference material on Irish history. Here, you can find resources for finding definitions (e.g., dictionaries); suggested scholarly material (e.g., bibliographies); as well as background material and explanations written by experts in their fields (e.g., encyclopedia and handbooks).
This page has a lot on it. You can use the following anchors (links down the page) to jump straight to a relevant box.
The include encyclopedia (short-ish entries) as well as handbooks and companions (full chapters or book on specific topics).