Polibuscador allows you to launch searches JUST in the Catalog, choosing that option in the menu. Moreover, you can filter by the type of document you are looking for (Books, Magazines, Maps, Movies, thesis, etc..) and select the field you want to make your search (Author, Title, Subject, ISBN, Signature, etc.)
The results page shows you the basic information of the documents. Under it, you'll find a series of tabs (Applications, Holdings, Details, Comments and tags and Additional services) which allow you make different actions.
Funds tab gives you information about the Signature of the document (essential to physically locate it on the shelf). Also, if you are identified as user in Polibuscador, you can Reserve the borrowed documents.
The Applications tab offers the possibility to Request to purchase more copies.