The target is only accessible through TCP and lives at Internet address z3950.copac.ac.uk on port 2100. No username or password should be specified. Specifying a username and password is the second most common cause of problems. Init, Search, Present, Named Result Sets, Delete Result Set, Sort, Trigger Resource Control and Close are supported.
Earlier queries can be back-referenced in the current query.
Both version 2 and version 3 of the standard are supported. There are no access restrictions. The default is Full. This is the full record wrapped in HTML tags for a neater display if you want to show the records in a WWW browser. Now there is a small amount of Explain implemented we support Exp-1 for searching the Explain database.