1. Error message: "Es ist kein über den OPACplus bestellbares Exemplar vorhanden" (No copies are available for online ordering)

Possible reason:

• The book you wish to order is in a departmental library; you will have to contact the library for further details. You will find a complete list of all the libraries in the University system in the OPACplus "Additional services" → "library location codes"; you can find further information in the leaflet " or via the website search function on the Main Library's home page.

2. Error message: "Eine Bestellung ist nicht möglich" (It is not possible to order this book)

Possible reasons:

• the book is in the Reading Room or the manuscript department and must be used there.
• the book is in the textbook-collection and can be borrowed directly from there (status: "ausleihbar").
• the book is missing or not on the shelf at present.